text:
Freeciv

Freeciv is a single- and multiplayer turn-based strategy game for workstations and personal computers inspired by the proprietary Sid Meier's Civilization series. It is available for most desktop computer operating systems and available in an online browser version. Released under the GNU GPL-2.0-or-later, Freeciv is free and open-source software. The game's default settings are closest to Civilization II, in both gameplay and graphics, including the units and the isometric grid. However, with a lot of multiplayer games being played in longturn communities, rulesets and additional variants have evolved away from the original ruleset. Freeciv is playable online at Longturn.net, fciv.net, freecivweb.org and some temporary private servers.

Players take the role of tribal leaders in 4000 B.C. who must guide their peoples through the centuries. Over time, new technologies are discovered, which allow the construction of new city buildings and the deployment of new units. Players can wage war on one another or form diplomatic relationships.

The game ends when one civilization has eradicated all others or accomplished the goal of space colonization, or at a given deadline. If more than one civilization remains at the deadline, the player with the highest score wins. Points are awarded for the size of a civilization, its wealth, and cultural and scientific advances.

History
At the computer science department at Aarhus University, three students, avid players of XPilot and of Sid Meier's Civilization, which was a stand-alone PC game for MS-DOS, decided to find out whether the two could be fused into an X-based multiplayer Civilization-like strategy game. The students—Peter Unold, Claus Leth Gregersen and Allan Ove Kjeldbjerg—started development in November 1995; the first playable version was released in January 1996, with bugfixing and small enhancements until April. The rules of the game were close to Civilization, while the client/server architecture was basically that of XPilot.

For the developers, Freeciv 1.0 was a successful proof of concept, but a rather boring game, so they went back to XPilot. Other players and developers took over; they made the game available on many other operating systems, including Linux, Solaris, Ultrix, AmigaOS, and Microsoft Windows. Linux distributions started to include Freeciv.

The main development goal remained to make a Civilization-like game playable over the Internet, with participants on different continents, even when connected with 14400 bit/s modems. Freeciv achieved this by using an asynchronous client-server protocol: during each turn, human users play concurrently, and their actions are sent to the server for processing without awaiting the results. This kept the game playable with network latency up to a few hundreds of milliseconds. In 1998, computer players were added; they could soon beat newcomers to the game with ease, using only minor forms of cheating. Computer players are implemented directly in the server; they do not play concurrently with human players, but separately, in between turns.

The game grew in popularity. A public server was installed on which games could be played around the clock; it retained the games and published a post-game analysis webpage with per-player statistics and an animated map replay.

Subsequent 1.x releases improved the GUI, improved the gameplay, optimized playability over poor connections, and added many small features. Over time, the winning strategy proved to be city smallpox, i.e. sprawling the map with many small cities as fast as possible; whoever could develop fastest would win the game, and growing and developing individual cities was not worthwhile.

In practice, from around 2002, experienced players would form teams at the start of the game; a fork of Freeciv included specific features for team play.

Version 2.0, released in 2005, introduced several important changes. New team playing features and advanced diplomacy made cooperative gaming more attractive. Adjustments to various costs and benefits put an end to the dominance of the city smallpox strategy that left many of the game's features unused; developing one's empire now necessitated a careful plan for city development, including the used of trade routes and phases of rapture, in which city populations grow quickly, under relatively peaceful conditions. As a result, multiplayer games were almost always played in teams and typically took longer to finish when compared to 1.x games.

In 2006, TCP and UDP port number 5556 was assigned to Freeciv by IANA. In 2017, after being hosted on Gna! for 15 years, Freeciv moved its source repository to GitHub.

Reception and impact
In 2000, CNN placed Freeciv among the "Top 10 Linux games for the holidays". In 2005, in an O'Reilly article on "Open Source Mac Gaming", Freeciv was recommended. In 2008, APC named Freeciv among the "Top 5 best (free) open source games". Linux Format selected it as "HotPick" in April 2010 and in October 2014.

Freeciv was described as an example in The Art of Unix Programming by Eric S. Raymond. Studies and courses have used Freeciv as a platform for experimenting with the design and programming of intelligent agents.

Design
Freeciv is very configurable, down to the specific rules, so it can be played in Freeciv (default) mode, Civilization mode, Civilization II mode, or a custom mode. One or several players act as game administrators and can configure the game rules. Typically modified rules are:

 * Number of players required before the game can be started. The maximum number of players is 126 in the latest version of Freeciv.
 * Speed of technological development
 * Whether there should be computer controlled players
 * Whether (computer controlled) barbarians should invade player settlements
 * How close cities can be built to one another
 * How continents and islands are generated and distributed over the map
 * The map size, where the maximum map size is 2,048,000 map tiles (128,000 before 2.4.0)
 * Map topology (rectangular or hexagonal tiling; whether it wraps horizontally and/or vertically)

In order to play a game of Freeciv, a user must start up a Freeciv client and connect it to a Freeciv server. Initially, the server is in pre-game phase; in this phase, clients can connect and game configuration parameters can be changed. At some point, the server may be ordered to start a game; in response, it creates game players (nations) and the game map, and assigns every player to either a Freeciv client or a computer player, as specified by the configuration. From that point on, the game will run until it ends or is terminated; the server can never get back into pre-game state. The user can also start a game directly from the client: this automatically starts a Freeciv server, connects to it and starts the game.

Features

Freeciv's graphics system is configurable: originally, map display was always in overhead mode (like in Civ I). Isometric mode (like in Civ II and III) and optionally hexagonal tiling (like in Civ V and VI) were added later. In both modes, look can be further customized by switching to an alternative set of graphics (called a tileset). The sounds can be replaced as well. Freeciv supports human-to-human multiplayer gameplay and artificial intelligence (AI) computer players. While the game is turn based, human players move simultaneously. The AI players move separately, partly at the start of a turn, partly at the end.

In releases before 2.0, AI players could not engage in diplomatic relationships with human players. Under the current releases, AI players will engage in a very predictable, rules-based diplomacy. Version 2.2.0 included a map editor, termed Civworld. It can create new scenarios, as well as edit the map currently being played. Basic scripting is available with Freeciv, but is not available in Civworld. Version 2.3 increased the limit of players from 30 to 126.

There are different clients available SDL, GTK+ (version3) and Xaw3D A Qt client was added in version 2.5. The Freeciv interface is available in over 30 different languages. The addition of Gaelic was covered on BBC TV.

Ports and variants
Originally developed on IRIX, Freeciv has been ported to many different operating systems: it is distributed with many Linux distributions, offers installers for Microsoft Windows, and has been known to run on Mac OS X, MorphOS, Solaris, Ultrix, QNX, OS/2, Cygwin, AmigaOS, AROS, RISC OS, Maemo, ZETA, SkyOS, various BSDs, and smartphones and tablets running Android.

As of version 2.4, Mac OS X, and as of version 2.3, Windows versions older than Windows XP SP3 are no longer supported. Freeciv is available in the PortableApps format.

Freeciv21
Freeciv21 is a fork of the original Freeciv project started with the intention of modernizing the code and the client interface, and also adjusting the software more to the needs of multiplayer longturn variant. It was started by enthusiasts within the Longturn.net community. As of January 2023 it is in late developing stage. The first standard Longturn game played on Fc21 software was LT75, started in November 2022.

FCIV.NET
FCIV.NET is a variant of Freeciv which focuses on 3D graphics and is playable for free on www.fciv.net (site no longer working). It uses the Three.js 3D engine.

Freeciv-web
Freeciv-web is a version of Freeciv playable online in any modern web browser. It supports 2D isometric graphics or 3D graphics using WebGL. The game is a fork of the Freeciv project, with the goal of redesigning the desktop game into a version which can be played online. Freeciv-web introduced several new features, such as play-by-email support freely available to anyone online, and support for playing the game on any real-world map location by choosing a map using Mapbox, which is not available in commercial games in the genre. The game's default settings are closest to Civilization II, both in gameplay and graphics (including the units and the isometric grid). The proposal to create a web-version of Freeciv was made 6 April 2007 on the Freeciv mailing lists, and documented on the Freeciv.org wiki. Freeciv-web was originally created by Andreas Røsdal, but is now maintained by several Freeciv developers on GitHub.

Freeciv-web is free and open-source software. The Freeciv C server is released under the GNU General Public License, while the Freeciv-web client is released under the GNU Affero General Public License. Freeciv-web supports human-to-human multiplayer gameplay and artificial intelligence (AI) computer players. Its features are similar to the Freeciv C client, although not all of the user-interface has been ported from the C client yet.

The Freeciv-web server on play.freeciv.org was shut down in March 2018, but the project was revived by a group of volunteers on freecivweb.org. Freeciv-web can be played online at a number of servers such as freecivweb.org. All the features required to play a full game of Freeciv are in place. Most servers offer multiple varieties of the game: single-player, multiplayer free-for-all, play-by-email and longturn.

Longturn variants
Freeciv Longturn is a specialized large-group-multiplayer-online-strategy variant of Freeciv featuring daylong game turns with large amounts of human opponents per map, allowing for optimal timing to build up strategic plans and readapt them to the circumstances of each turn. Matches can last anytime from a few weeks to months, and commonly involve 20 to 30 players in each one.

Longturn's first game, now called LT0, started around 2004 on the Polish Civilization fanpage civ.org.pl and is now conducted at Longturn.net. It was decided that the game is a bit too slow-paced, so a new "3X movement" ruleset was devised – basically, all units had their movement points and vision radius tripled. As of December 2022, the latest game was LT76. Changes to settings or rulesets are discussed in the Longturn forum. and, recently, Longturn Discord server where the community is currently centered. There is ongoing development of a few non-standard rulesets specifically adjusted for longturn multiplayer games, diverging from the rules of the original Civilization which was created as a single-player game.

Greatturn was a similar concept on another server. FreeCivWeb.org also offers longturn games (more than fifty have been played before mid-2021) with a multiplayer ruleset which is documented in great detail.

Power of Planets – Earth (formerly known as GaCivs) is a free-to-play MMO-RTS variant based on FreeCiv. The ruleset was devised to support long-term time-based gameplay instead of turn-based strategy.

license: Creative Commons - Attribution Share-Alike - https://creativecommons.org/licenses/by-sa/4.0/

title: Freeciv


text:
Fornax

Fornax is a constellation in the southern celestial hemisphere, partly ringed by the celestial river Eridanus. Its name is Latin for furnace. It was named by French astronomer Nicolas Louis de Lacaille in 1756. Fornax is one of the 88 modern constellations.

The three brightest stars—Alpha, Beta and Nu Fornacis—form a flattened triangle facing south. With an apparent magnitude of 3.91, Alpha Fornacis is the brightest star in Fornax. Six star systems have been found to have exoplanets. The Fornax Dwarf galaxy is a small faint satellite galaxy of the Milky Way. NGC 1316 is a relatively close radio galaxy.

The Hubble's Ultra-Deep Field is located within the Fornax constellation.

It is the 41st largest constellation in the night-sky, occupying an area of 398 square degrees. It is located in the first quadrant of the southern hemisphere (SQ1) and can be seen at latitudes between +50° and -90° during the month of December.

History

The French astronomer Nicolas Louis de Lacaille first described the constellation in French as le Fourneau Chymique (the Chemical Furnace) with an alembic and receiver in his early catalogue, before abbreviating it to le Fourneau on his planisphere in 1752, after he had observed and catalogued almost 10,000 southern stars during a two-year stay at the Cape of Good Hope. He devised fourteen new constellations in uncharted regions of the Southern Celestial Hemisphere not visible from Europe. All but one honoured instruments that symbolised the Age of Enlightenment. Lacaille Latinised the name to Fornax Chimiae on his 1763 chart.

Characteristics
The constellation Eridanus borders Fornax to the east, north and south, while Cetus, Sculptor and Phoenix gird it to the north, west and south respectively. Covering 397.5 square degrees and 0.964% of the night sky, it ranks 41st of the 88 constellations in size, The three-letter abbreviation for the constellation, as adopted by the International Astronomical Union in 1922, is "For". The official constellation boundaries, as set by Belgian astronomer Eugène Delporte in 1930, are defined by a polygon of 8 segments (illustrated in infobox). In the equatorial coordinate system, the right ascension coordinates of these borders lie between 01:45:24.18 and 03:50:21.34, while the declination coordinates are between −23.76° and −39.58°. The whole constellation is visible to observers south of latitude 50°N.

Stars
Lacaille gave Bayer designations to 27 stars now named Alpha to Omega Fornacis, labelling two stars 3.5 degrees apart as Gamma, three stars Eta, two stars Iota, two Lambda and three Chi. Phi Fornacis was added by Gould, and Theta and Omicron were dropped by Gould and Baily respectively. Upsilon, too, was later found to be two stars and designated as such. Overall, there are 59 stars within the constellation's borders brighter than or equal to apparent magnitude 6.5. However, there are no stars brighter than the fourth magnitude.

The three brightest stars form a flattish triangle, with Alpha (also called Dalim ) and Nu Fornacis marking its eastern and western points and Beta Fornacis marking the shallow southern apex. Originally designated 12 Eridani by John Flamsteed, Alpha Fornacis was named by Lacaille as the brightest star in the new constellation. It is a binary star that can be resolved by small amateur telescopes. With an apparent magnitude of 3.91, the primary is a yellow-white subgiant 1.21 times as massive as the Sun that has begun to cool and expand after exhausting its core hydrogen, having swollen to 1.9 times the Sun's radius. Of magnitude 6.5, the secondary star is 0.78 times as massive as the Sun. It has been identified as a blue straggler, and has either accumulated material from, or merged with, a third star in the past. It is a strong source of X-rays. The pair is 46.4 ± 0.3 light-years distant from Earth.

Beta Fornacis is a yellow-hued giant star of spectral type G8IIIb of magnitude 4.5 that has cooled and swelled to 11 times the Sun's diameter, 178 ± 2 light-years from Earth. It is a red clump giant, which means it has undergone helium flash and is currently generating energy through the fusion of helium at its core.

Nu Fornacis is 370 ± 10 light-years distant from Earth. It is a blue giant star of spectral type B9.5IIIspSi that is 3.65 ± 0.18 times as massive and around 245 times as luminous as the Sun, with 3.2 ± 0.4 times its diameter. It varies in luminosity over a period of 1.89 days—the same as its rotational period. This is because of differences in abundances of metals in its atmosphere; it belongs to a class of star known as an Alpha2 Canum Venaticorum variable.

Shining with an apparent magnitude of 5.89, Epsilon Fornacis is a binary star system located 104.4 ± 0.3 light-years distant from Earth. Its component stars orbit each other every 37 years. The primary star is around 12 billion years old and has cooled and expanded to 2.53 times the diameter of the Sun, while having only 91% of its mass. Omega Fornacis is a binary star system composed of a blue main-sequence star of spectral type B9.5V and magnitude 4.96, and a white main sequence star of spectral type A7V and magnitude 7.88. The system is 470 ± 10 light-years distant from Earth.

Kappa Fornacis is a triple star system composed of a yellow giant and a pair of red dwarfs.

R Fornacis is a long-period variable and carbon star.

LP 944-20 is a brown dwarf of spectral type M9 that has around 7% the mass of the Sun. Approximately 21 light-years distant from Earth, it is a faint object with an apparent magnitude of 18.69. Observations published in 2007 showed that the atmosphere of LP 944-20 contains much lithium and that it has dusty clouds. Smaller and less luminous still is 2MASS 0243-2453, a T-type brown dwarf of spectral type T6. With a surface temperature of 1040–1100 K, it has 2.4–4.1% the mass of the Sun, a diameter 9.2 to 10.6% of that of the Sun, and an age of 0.4–1.7 billion years.

Six star systems in Fornax have been found to have planets:
 * Lambda2 Fornacis is a star about 1.2 times as massive as the Sun with a planet about as massive as Neptune, discovered by doppler spectroscopy in 2009. The planet has an orbit of around 17.24 days.
 * HD 20868 is an orange dwarf with a mass around 78% that of the Sun, 151 ± 10 light-years away from Earth. It was found to have an orbiting planet approximately double the mass of Jupiter with a period of 380 days.
 * WASP-72 is a star around 1.4 times as massive that has begun to cool and expand off the main sequence, reaching double the Sun's diameter. It has a planet around as massive as Jupiter orbiting it every 2.2 days.
 * HD 20781 and HD 20782 are a pair of sunlike yellow main sequence stars that orbit each other. Each has been found to have planets.
 * HR 858 is a near naked eye visible star in Fornax, 31.3 parsecs away. In May 2019, it was announced to have at least 3 exoplanets as observed by transit method of the Transiting Exoplanet Survey Satellite.

Deep-sky objects

Local Group

NGC 1049 is a globular cluster 500,000 light-years from Earth. It is in the Fornax Dwarf Galaxy. NGC 1360 is a planetary nebula in Fornax with a magnitude of approximately 9.0, 1,280 light-years from Earth. Its central star is of magnitude 11.4, an unusually bright specimen. It is five times the size of the famed Ring Nebula in Lyra at 6.5 arcminutes. Unlike the Ring Nebula, NGC 1360 is clearly elliptical.

The Fornax Dwarf galaxy is a dwarf galaxy that is part of the Local Group of galaxies. It is not visible in amateur telescopes, despite its relatively small distance of 500,000 light-years.

Helmi stream is a small galactic stream in Fornax. This small galaxy was destroyed by Milky Way 6 billion years ago. There was candidate for extragalactic planet, HIP 13044 b.

Outside

NGC 1097 is a barred spiral galaxy in Fornax, about 45 million light-years from Earth. At magnitude 9, it is visible in medium amateur telescopes. It is notable as a Seyfert galaxy with strong spectral emissions indicating ionized gases and a central supermassive black hole.

Fornax Cluster

The Fornax Cluster is a cluster of galaxies lying at a distance of 19 megaparsecs (62 million light-years). It is the second richest galaxy cluster within 100 million light-years, after the considerably larger Virgo Cluster, and may be associated with the nearby Eridanus Group. It lies primarily in the constellation Fornax, with its southern boundaries partially crossing into the constellation of Eridanus, and covers an area of sky about 6° across or about 28 sq degrees. The Fornax cluster is a part of larger Fornax Wall. Down are some famous objects in this cluster:

NGC 1365 is another barred spiral galaxy located at a distance of 56 million light-years from Earth. Like NGC 1097, it is also a Seyfert galaxy. Its bar is a center of star formation and shows extensions of the spiral arms' dust lanes. The bright nucleus indicates the presence of an active galactic nucleus – a galaxy with a supermassive black hole at the center, accreting matter from the bar. It is a 10th magnitude galaxy associated with the Fornax Cluster.

Fornax A is a radio galaxy with extensive radio lobes that corresponds to the optical galaxy NGC 1316, a 9th-magnitude galaxy. One of the closer active galaxies to Earth at a distance of 62 million light-years, Fornax A appears in the optical spectrum as a large elliptical galaxy with dust lanes near its core. These dust lanes have caused astronomers to discern that it recently merged with a small spiral galaxy. Because it has a high rate of type Ia supernovae, NGC 1316 has been used to determine the size of the universe. The jets producing the radio lobes are not particularly powerful, giving the lobes a more diffuse, knotted structure due to interactions with the intergalactic medium. Associated with this peculiar galaxy is an entire cluster of galaxies.

NGC 1399 is a large elliptical galaxy in the Southern constellation Fornax, the central galaxy in the Fornax cluster. The galaxy is 66 million light-years away from Earth. With a diameter of 130 000 light-years, it is one of the largest galaxies in the Fornax cluster and slightly larger than Milky Way. William Herschel discovered this galaxy on October 22, 1835.

NGC 1386 is a spiral galaxy located in the constellation Eridanus. It is located at a distance of circa 53 million light years from Earth and has apparent dimensions of 3.89' x 1.349'. It is a Seyfert galaxy, the only one in Fornax Cluster.

NGC 1427A is an irregular galaxy in the constellation Eridanus. Its distance modulus has been estimated using the globular cluster luminosity function to be 31.01 ± 0.21 which is about 52 Mly. It is the brightest dwarf irregular member of the Fornax cluster and is in the foreground of the cluster's central galaxy NGC 1399.

NGC 1460 is a barred lenticular galaxy in the constellation Eridanus. It was discovered by John Herschel on November 28, 1837. It is moving away from the Milky Way 1341 km/s. NGC 1460 has a Hubble classification of SB0, which indicates it is a barred lenticular galaxy. But, this one contains a huge bar at its core. The bar is spreading from center to the edge of the galaxy, as seen on Hubble image in the box. This bar is one of the largest seen in barred lenticular galaxies.

There are also first ultracompact dwarf galaxies discovered.

Distant universe

Fornax has been the target of investigations into the furthest reaches of the universe. The Hubble Ultra Deep Field is located within Fornax, and the Fornax Cluster, a small cluster of galaxies, lies primarily within Fornax. At a meeting of the Royal Astronomical Society in Britain, a team from University of Queensland described 40 unknown "dwarf" galaxies in this constellation; follow-up observations with the Hubble Space Telescope and the European Southern Observatory's Very Large Telescope revealed that ultra compact dwarfs are much smaller than previously known dwarf galaxies, about 120 ly across. ` UDFj-39546284 is a candidate protogalaxy located in Fornax,   although recent analyses have suggested it is likely to be a lower redshift source.

GRB 190114C was a notable gamma ray burst explosion from a galaxy 4.5 billion light years away near the Fornax constellation,  that was initially detected in January 2019. According to astronomers, "the brightest light ever seen from Earth [to date] ... [the] biggest explosion in the Universe since the Big Bang".

Equivalents
In Chinese astronomy, the stars that correspond to Fornax are within the White Tiger of the West (西方白虎, Xī Fāng Bái Hǔ).

Cited texts

 * Ian Ridpath and Wil Tirion (2007). Stars and Planets Guide, Collins, London. ISBN 978-0-00-725120-9. Princeton University Press, Princeton. ISBN 978-0-691-13556-4.
 * Ian Ridpath and Wil Tirion (2007). Stars and Planets Guide, Collins, London. ISBN 978-0-00-725120-9. Princeton University Press, Princeton. ISBN 978-0-691-13556-4.
 * Ian Ridpath and Wil Tirion (2007). Stars and Planets Guide, Collins, London. ISBN 978-0-00-725120-9. Princeton University Press, Princeton. ISBN 978-0-691-13556-4.

title: Fornax


text:
Francesco Borromini

Francesco Borromini, byname of Francesco Castelli (25 September 1599 – 2 August 1667), was an Italian architect born in the modern Swiss canton of Ticino who, with his contemporaries Gian Lorenzo Bernini and Pietro da Cortona, was a leading figure in the emergence of Roman Baroque architecture.

A keen student of the architecture of Michelangelo and the ruins of Antiquity, Borromini developed an inventive and distinctive, if somewhat idiosyncratic, architecture employing manipulations of Classical architectural forms, geometrical rationales in his plans and symbolic meanings in his buildings. He seems to have had a sound understanding of structures, which perhaps Bernini and Cortona, who were principally trained in other areas of the visual arts, lacked. His soft lead drawings are particularly distinctive. He appears to have been a self-taught scholar, amassing a large library by the end of his life.

His career was constrained by his personality. Unlike Bernini who easily adopted the mantle of the charming courtier in his pursuit of important commissions, Borromini was both melancholic and quick in temper which resulted in his withdrawing from certain jobs. His conflicted character led him to a death by suicide in 1667.

Probably because his work was idiosyncratic, his subsequent influence was not widespread but is apparent in the Piedmontese works of Guarino Guarini and, as a fusion with the architectural modes of Bernini and Cortona, in the late Baroque architecture of Northern Europe. Later critics of the Baroque, such as Francesco Milizia and the English architect Sir John Soane, were particularly critical of Borromini's work. From the late nineteenth century onwards, interest has revived in the works of Borromini and his architecture has become appreciated for its inventiveness.

Early life and first works
Borromini was born at Bissone, near Lugano in today's Ticino, which was at the time a bailiwick of the Swiss Confederacy. He was the son of a stonemason and began his career as a stonemason himself. He soon went to Milan to study and practice his craft. He moved to Rome in 1619 and started working for Carlo Maderno, his distant relative, at St. Peter's and then also at the Palazzo Barberini. When Maderno died in 1629, he and Pietro da Cortona continued to work on the palace under the direction of Bernini. Once he had become established in Rome, he changed his name from Castelli to Borromini, a name deriving from his mother's family and perhaps also out of regard for St Charles Borromeo.

San Carlo alle Quattro Fontane (San Carlino)
In 1634, Borromini received his first major independent commission to design the church, cloister and monastic buildings of San Carlo alle Quattro Fontane (also known as San Carlino). Situated on the Quirinal Hill in Rome, the complex was designed for the Spanish Trinitarians, a religious order. The monastic buildings and the cloister were completed first after which construction of the church took place during the period 1638-1641 and in 1646 it was dedicated to San Carlo Borromeo. The church is considered by many to be an exemplary masterpiece of Roman Baroque architecture. San Carlino is remarkably small given its significance to Baroque architecture; it has been noted that the whole building would fit into one of the dome piers of Saint Peter's. The site was not an easy one; it was a corner site and the space was limited. Borromini positioned the church on the corner of two intersecting roads. Although the idea for the serpentine façade must have been conceived fairly early on, probably in the mid-1630s, it was only constructed towards the end of Borromini's life and the upper part was not completed until after the architect's death.

Borromini devised the complex ground plan of the church from interlocking geometrical configurations, a typical Borromini device for constructing plans. The resulting effect is that the interior lower walls appear to weave in and out, partly alluding to a cross form, partly to a hexagonal form and partly to an oval form; geometrical figures that are all found explicitly in the dome above. The area of the pendentives marks the transition from the lower wall order to the oval opening of the dome. Illuminated by windows hidden from a viewer below, interlocking octagons, crosses and hexagons diminish in size as the dome rises to a lantern with the symbol of the Trinity.

Oratory of Saint Philip Neri (Oratorio dei Filippini)
In the late sixteenth century, the Congregation of the Filippini (also known as the Oratorians) rebuilt the church of Santa Maria in Vallicella (known as the Chiesa Nuova -new church) in central Rome. In the 1620s, on a site adjacent to the church, the Fathers commissioned designs for their own residence and for an oratory (or oratorio in Italian) in which to hold their spiritual exercises. These exercises combined preaching and music in a form which became immensely popular and highly influential on the development of the musical oratorio.

The architect Paolo Maruscelli drew up plans for the site (which survive) and the sacristy was begun in 1629 and was in use by 1635. After a substantial benefaction in January 1637, however, Borromini was appointed as architect. By 1640, the oratory was in use, a taller and richer clock tower was accepted, and by 1643, the relocated library was complete. The striking brick curved façade adjacent to the church entrance has an unusual pediment and does not entirely correspond to the oratory room behind it. The white oratory interior has a ribbed vault and a complex wall arrangement of engaged pilasters along with freestanding columns supporting first-level balconies. The altar wall was substantially reworked at a later date.

Borromini's relations with the Oratorians were often fraught; there were heated arguments over the design and the selection of building materials. By 1650, the situation came to a head and in 1652 the Oratorians appointed another architect.

However, with the help of his Oratorian friend and provost Virgilio Spada, Borromini documented his own account of the building of the oratory and the residence and an illustrated version was published in Italian in 1725

Sant'Ivo alla Sapienza
From 1640 to 1650, he worked on the design of the church of Sant'Ivo alla Sapienza and its courtyard, near University of Rome La Sapienza palace. It was initially the church of the Roman Archiginnasio. He had been initially recommended for the commission in 1632, by his then-supervisor for the work at the Palazzo Barberini, Gian Lorenzo Bernini. The site, like many in cramped Rome, is challenged by external perspectives. It was built at the end of Giacomo della Porta's long courtyard. The dome and cochlear steeple are peculiar, and reflect the idiosyncratic architectural motifs that distinguish Borromini from contemporaries. Inside, the nave has an unusual centralized plan circled by alternating concave and convex-ending cornices, leading to a dome decorated with linear arrays of stars and putti. The geometry of the structure is a symmetric six-pointed star; from the centre of the floor, the cornice looks like two equilateral triangles forming a hexagon, but three of the points are clover-like, while the other three are concavely clipped. The innermost columns are points on a circle. The fusion of feverish and dynamic baroque excesses with rationalistic geometry is an excellent match for a church in a papal institution of higher learning.

Sant'Agnese in Agone
Borromini was one of several architects involved in the building of the church of Sant’Agnese in Agone in Rome. Not only were some of his design intentions changed by succeeding architects but the net result is a building which reflects, rather unhappily, a mix of different approaches.

The decision to rebuild the church was taken in 1652 as part of Pope Innocent X's project to enhance the Piazza Navona, the urban space onto which his family palace, the Palazzo Pamphili, faced. The first plans for a Greek Cross church were drawn up by Girolamo Rainaldi and his son Carlo Rainaldi, who relocated the main entrance from the Via di Santa Maria dell'Anima to the Piazza Navona. The foundations were laid and much of the lower level walls had been constructed when the Rainaldis were dismissed due to criticisms of the design and Borromini was appointed in their stead.

Borromini began a much more innovative approach to the façade which was expanded to include parts of the adjacent Palazzo Pamphili and gain space for his two bell towers. Construction of the façade proceeded up to the cornice level and the dome completed as far as the lantern. On the interior, he placed columns against the piers of the lower order which was mainly completed.

In 1655, Innocent X died and the project lost momentum. In 1657, Borromini resigned and Carlo Rainaldi was recalled who made a number of significant changes to Borromini's design. Further alterations were made by Bernini including the façade pediment. In 1668, Carlo Rainaldi returned as architect and Ciro Ferri received the commission to fresco the dome interior which it is highly unlikely that Borromini intended. Further large-scale statuary and coloured marbling were also added; again, these are not part of Borromini's design repertoire which was orientated to white stucco architectural and symbolic motifs.

The Re Magi Chapel of the Propaganda Fide
The College of the Propagation of the Faith or Propaganda Fide in Rome includes the Re Magi Chapel by Borromini, generally considered by architectural historians to be one of his most spatially unified architectural interiors.

The chapel replaced a small oval chapel designed by his rival Bernini and was a late work in Borromini's career; he was appointed as architect in 1648 but it was not until 1660 that construction of the chapel began and although the main body of work was completed by 1665, some of the decoration was finished after his death.

His façade to the Via di Propaganda Fide comprises seven bays articulated by giant pilasters. The central bay is a concave curve and accommodates the main entry into the college courtyard and complex, with the entrance to the chapel to the left and to the college to the right.

Other works
Borromini's works include:
 * Interior of Basilica di San Giovanni in Laterano
 * Cappella Spada, San Girolamo della Carità (uncertain attribution)
 * Palazzo Spada (trick perspective)
 * Palazzo Barberini (upper-level windows and oval staircase)
 * Santi Apostoli, Naples - Filamarino Altar
 * Sant'Andrea delle Fratte
 * Oratorio dei Filippini
 * Palazzo Carpegna, Rome (ground floor portico and portal, helicoidal ramp leading to the upper floors)
 * Collegio de Propaganda Fide
 * Santa Maria dei Sette Dolori, Rome
 * Santa Maria alla Porta, Milan - portal and tympanum
 * San Giovanni in Oleo (restoration)
 * Palazzo Giustiniani (with Carlo Fontana)
 * Façade and loggia Palazzo Falconieri
 * Santa Lucia in Selci (restoration)
 * Saint Peter's Basilica (gates to Blessed Sacrament Chapel and possibly parts of baldacchino)

Death and epitaph
In the summer of 1667, and following the completion of the Falconieri chapel (the High Altar chapel) in San Giovanni dei Fiorentini, Borromini committed suicide in Rome by drawing his sword, resting the hilt against his bed, and falling on it "with such force that it ran into [his] body, from one side to the other" This was possibly as a result of nervous disorders and depression. The architect named cardinal Ulderico Carpegna executor of his will and bequeathed him money and objects of considerable value "for", as he wrote, "the infinite debt I have toward him". The prelate was a former patron who had commissioned Borromini important works of transformation and expansion of his palace at Fontana di Trevi. In his testament, Borromini wrote that he did not want any name on his burial and expressed the desire to be buried in the tomb of his kinsman Carlo Maderno in San Giovanni dei Fiorentini.

In recent times (in 1955), his name was added to the marble plaque below the tomb of Maderno and a commemorative plaque commissioned by the Swiss embassy in Rome was placed on a pillar of the church. This Latin inscription reads:

"FRANCISCVS BORROMINI TICINENSIS

EQVES CHRISTI

QVI

IMPERITVRAE MEMORIAE ARCHITECTVS

DIVINAM ARTIS SVAE VIM

AD ROMAM MAGNIFICIS AEDIFICIIS EXORNANDAM VERTIT

IN QVIBUS

ORATORIVM PHILIPPINVM S. IVO S. AGNES IN AGONE

INSTAVRATA LATERANENSIS ARCHIBASILICA

S. ANDREAS DELLE FRATTE NVNCVPATUM

S. CAROLVS IN QVIRINALI

AEDES DE PROPAGANDA FIDE

HOC AVTEM IPSVM TEMPLVM

ARA MAXIMA DECORAVIT

NON LONGE AB HOC LAPIDE

PROPE MORTALES CAROLI MADERNI EXUVVIAS

PROPINQVI MVNICIPIS ET AEMVLI SVI

IN PACE DOMINI QVIESCIT"

The adjective "Ticinensis" used in the plaque is an anachronism, since the name, related to the Ticino river, was chosen only in 1803, when the modern Canton was created by Napoleon.

Honours

 * Francesco Borromini was featured on the obverse of the 6th series 100 Swiss Franc banknote, which was in circulation from 1976 until 2000.

This decision at that time caused polemics in Switzerland, started by the Swiss-Italian art historian Piero Bianconi. According to him, since in 17th century the territories which in 1803 became the Canton Ticino were Italian possessions of some Swiss cantons (Condominiums of the Twelve Cantons), Borromini could neither be defined Ticinese nor Swiss. The architect was also featured on the 7th series, which was a reserve emission and was never released. The reverse of both series shows architectural details from some of his major works.
 * He is the subject of the film La Sapienza by Eugène Green released in 2015.

title: Francesco Borromini


text:
Federal Bureau of Investigation

The Federal Bureau of Investigation (FBI) is the domestic intelligence and security service of the United States and its principal federal law enforcement agency. An agency of the United States Department of Justice, the FBI is a member of the U.S. Intelligence Community and reports to both the Attorney General and the Director of National Intelligence. A leading U.S. counterterrorism, counterintelligence, and criminal investigative organization, the FBI has jurisdiction over violations of more than 200 categories of federal crimes.

Although many of the FBI's functions are unique, its activities in support of national security are comparable to those of the British MI5 and NCA, the New Zealand GCSB and the Russian FSB. Unlike the Central Intelligence Agency (CIA), which has no law enforcement authority and is focused on intelligence collection abroad, the FBI is primarily a domestic agency, maintaining 56 field offices in major cities throughout the United States, and more than 400 resident agencies in smaller cities and areas across the nation. At an FBI field office, a senior-level FBI officer concurrently serves as the representative of the director of National Intelligence.

Despite its domestic focus, the FBI also maintains a significant international footprint, operating 60 Legal Attache (LEGAT) offices and 15 sub-offices in U.S. embassies and consulates across the globe. These foreign offices exist primarily for the purpose of coordination with foreign security services and do not usually conduct unilateral operations in the host countries. The FBI can and does at times carry out secret activities overseas, just as the CIA has a limited domestic function. These activities generally require coordination across government agencies.

The FBI was established in 1908 as the Bureau of Investigation, the BOI or BI for short. Its name was changed to the Federal Bureau of Investigation (FBI) in 1935. The FBI headquarters is the J. Edgar Hoover Building in Washington, D.C. The FBI has a List of the Top 10 criminals.

Mission
The mission of the FBI is to "protect the American people and uphold the Constitution of the United States".

Priorities
Currently, the FBI's top priorities are:

 * Protect the United States from terrorist attacks
 * Protect the United States against foreign intelligence operations, espionage, and cyber operations
 * Combat significant cybercriminal activity
 * Combat public corruption at all levels
 * Protect civil rights
 * Combat transnational criminal enterprises
 * Combat major white-collar crime
 * Combat significant violent crime

Budget
In the fiscal year 2019, the Bureau's total budget was approximately $9.6 billion.

In the Authorization and Budget Request to Congress for fiscal year 2021, the FBI asked for $9,800,724,000. Of that money, $9,748,829,000 would be used for Salaries and Expenses (S&E) and $51,895,000 for Construction. The S&E program saw an increase of $199,673,000.

Background
In 1896, the National Bureau of Criminal Identification was founded, providing agencies across the country with information to identify known criminals. The 1901 assassination of President William McKinley created a perception that the United States was under threat from anarchists. The Departments of Justice and Labor had been keeping records on anarchists for years, but President Theodore Roosevelt wanted more power to monitor them.

The Justice Department had been tasked with the regulation of interstate commerce since 1887, though it lacked the staff to do so. It had made little effort to relieve its staff shortage until the Oregon land fraud scandal at the turn of the 20th century. President Roosevelt instructed Attorney General Charles Bonaparte to organize an autonomous investigative service that would report only to the Attorney General.

Bonaparte reached out to other agencies, including the U.S. Secret Service, for personnel, investigators in particular. On May 27, 1908, Congress forbade this use of Treasury employees by the Justice Department, citing fears that the new agency would serve as a secret police department. Again at Roosevelt's urging, Bonaparte moved to organize a formal Bureau of Investigation, which would then have its own staff of special agents.

Creation of BOI
The Bureau of Investigation (BOI) was created on July 26, 1908. Attorney General Bonaparte, using Department of Justice expense funds, hired thirty-four people, including some veterans of the Secret Service, to work for a new investigative agency. Its first "chief" (the title is now "director") was Stanley Finch. Bonaparte notified the Congress of these actions in December 1908.

The bureau's first official task was visiting and making surveys of the houses of prostitution in preparation for enforcing the "White Slave Traffic Act" or Mann Act, passed on June 25, 1910. In 1932, the bureau was renamed the United States Bureau of Investigation.

Creation of FBI
The following year, 1933, the BOI was linked to the Bureau of Prohibition and rechristened the Division of Investigation (DOI); it became an independent service within the Department of Justice in 1935. In the same year, its name was officially changed from the Division of Investigation to the Federal Bureau of Investigation (FBI).

J. Edgar Hoover as FBI director

J. Edgar Hoover served as FBI director from 1924 to 1972, a combined 48 years with the BOI, DOI, and FBI. He was chiefly responsible for creating the Scientific Crime Detection Laboratory, or the FBI Laboratory, which officially opened in 1932, as part of his work to professionalize investigations by the government. Hoover was substantially involved in most major cases and projects that the FBI handled during his tenure. But as detailed below, his tenure as Bureau director proved to be highly controversial, especially in its later years. After Hoover's death, Congress passed legislation that limited the tenure of future FBI directors to ten years.

Early homicide investigations of the new agency included the Osage Indian murders. During the "War on Crime" of the 1930s, FBI agents apprehended or killed a number of notorious criminals who committed kidnappings, bank robberies, and murders throughout the nation, including John Dillinger, "Baby Face" Nelson, Kate "Ma" Barker, Alvin "Creepy" Karpis, and George "Machine Gun" Kelly.

Other activities of its early decades focused on the scope and influence of the white supremacist group Ku Klux Klan, a group with which the FBI was evidenced to be working in the Viola Liuzzo lynching case. Earlier, through the work of Edwin Atherton, the BOI claimed to have successfully apprehended an entire army of Mexican neo-revolutionaries under the leadership of General Enrique Estrada in the mid-1920s, east of San Diego, California.

Hoover began using wiretapping in the 1920s during Prohibition to arrest bootleggers. In the 1927 case Olmstead v. United States, in which a bootlegger was caught through telephone tapping, the United States Supreme Court ruled that FBI wiretaps did not violate the Fourth Amendment as unlawful search and seizure, as long as the FBI did not break into a person's home to complete the tapping. After Prohibition's repeal, Congress passed the Communications Act of 1934, which outlawed non-consensual phone tapping, but did allow bugging. In the 1939 case Nardone v. United States, the court ruled that due to the 1934 law, evidence the FBI obtained by phone tapping was inadmissible in court. After Katz v. United States (1967) overturned Olmstead, Congress passed the Omnibus Crime Control Act, allowing public authorities to tap telephones during investigations, as long as they obtained warrants beforehand.

National security
Beginning in the 1940s and continuing into the 1970s, the bureau investigated cases of espionage against the United States and its allies. Eight Nazi agents who had planned sabotage operations against American targets were arrested, and six were executed (Ex parte Quirin) under their sentences. Also during this time, a joint US/UK code-breaking effort called "The Venona Project"—with which the FBI was heavily involved—broke Soviet diplomatic and intelligence communications codes, allowing the US and British governments to read Soviet communications. This effort confirmed the existence of Americans working in the United States for Soviet intelligence. Hoover was administering this project, but he failed to notify the Central Intelligence Agency (CIA) of it until 1952. Another notable case was the arrest of Soviet spy Rudolf Abel in 1957. The discovery of Soviet spies operating in the US motivated Hoover to pursue his longstanding concern with the threat he perceived from the American Left.

Japanese American internment
In 1939, the Bureau began compiling a custodial detention list with the names of those who would be taken into custody in the event of war with Axis nations. The majority of the names on the list belonged to Issei community leaders, as the FBI investigation built on an existing Naval Intelligence index that had focused on Japanese Americans in Hawaii and the West Coast, but many German and Italian nationals also found their way onto the FBI Index list. Robert Shivers, head of the Honolulu office, obtained permission from Hoover to start detaining those on the list on December 7, 1941, while bombs were still falling over Pearl Harbor. Mass arrests and searches of homes, in most cases conducted without warrants, began a few hours after the attack, and over the next several weeks more than 5,500 Issei men were taken into FBI custody.

On February 19, 1942, President Franklin Roosevelt issued Executive Order 9066, authorizing the removal of Japanese Americans from the West Coast. FBI Director Hoover opposed the subsequent mass removal and confinement of Japanese Americans authorized under Executive Order 9066, but Roosevelt prevailed. The vast majority went along with the subsequent exclusion orders, but in a handful of cases where Japanese Americans refused to obey the new military regulations, FBI agents handled their arrests. The Bureau continued surveillance on Japanese Americans throughout the war, conducting background checks on applicants for resettlement outside camp, and entering the camps, usually without the permission of War Relocation Authority officials, and grooming informants to monitor dissidents and "troublemakers". After the war, the FBI was assigned to protect returning Japanese Americans from attacks by hostile white communities.

Sex deviates program
According to Douglas M. Charles, the FBI's "sex deviates" program began on April 10, 1950, when J. Edgar Hoover forwarded to the White House, to the U.S. Civil Service Commission, and to branches of the armed services a list of 393 alleged federal employees who had allegedly been arrested in Washington, D.C., since 1947, on charges of "sexual irregularities". On June 20, 1951, Hoover expanded the program by issuing a memo establishing a "uniform policy for the handling of the increasing number of reports and allegations concerning present and past employees of the United States Government who assertedly [sic] are sex deviates." The program was expanded to include non-government jobs. According to Athan Theoharis, "In 1951 he [Hoover] had unilaterally instituted a Sex Deviates program to purge alleged homosexuals from any position in the federal government, from the lowliest clerk to the more powerful position of White house aide." On May 27, 1953, Executive Order 10450 went into effect. The program was expanded further by this executive order by making all federal employment of homosexuals illegal. On July 8, 1953, the FBI forwarded to the U.S. Civil Service Commission information from the sex deviates program. Between 1977 and 1978, 300,000 pages in the sex deviates program, collected between 1930 and the mid-1970s, were destroyed by FBI officials.

Civil rights movement
During the 1950s and 1960s, FBI officials became increasingly concerned about the influence of civil rights leaders, whom they believed either had communist ties or were unduly influenced by communists or "fellow travelers". In 1956, for example, Hoover sent an open letter denouncing Dr. T. R. M. Howard, a civil rights leader, surgeon, and wealthy entrepreneur in Mississippi who had criticized FBI inaction in solving recent murders of George W. Lee, Emmett Till, and other blacks in the South. The FBI carried out controversial domestic surveillance in an operation it called the COINTELPRO, from "COunter-INTELligence PROgram". It was to investigate and disrupt the activities of dissident political organizations within the United States, including both militant and non-violent organizations. Among its targets was the Southern Christian Leadership Conference, a leading civil rights organization whose clergy leadership included the Rev. Dr. Martin Luther King Jr..

The FBI frequently investigated King. In the mid-1960s, King began to criticize the Bureau for giving insufficient attention to the use of terrorism by white supremacists. Hoover responded by publicly calling King the most "notorious liar" in the United States. In his 1991 memoir, Washington Post journalist Carl Rowan asserted that the FBI had sent at least one anonymous letter to King encouraging him to commit suicide. Historian Taylor Branch documents an anonymous November 1964 "suicide package" sent by the Bureau that combined a letter to the civil rights leader telling him "You are done. There is only one way out for you." with audio recordings of King's sexual indiscretions.

In March 1971, the residential office of an FBI agent in Media, Pennsylvania was burgled by a group calling itself the Citizens' Commission to Investigate the FBI. Numerous files were taken and distributed to a range of newspapers, including The Harvard Crimson. The files detailed the FBI's extensive COINTELPRO program, which included investigations into lives of ordinary citizens—including a black student group at a Pennsylvania military college and the daughter of Congressman Henry S. Reuss of Wisconsin. The country was "jolted" by the revelations, which included assassinations of political activists, and the actions were denounced by members of the Congress, including House Majority Leader Hale Boggs. The phones of some members of the Congress, including Boggs, had allegedly been tapped.

Kennedy's assassination
When President John F. Kennedy was shot and killed, the jurisdiction fell to the local police departments until President Lyndon B. Johnson directed the FBI to take over the investigation. To ensure clarity about the responsibility for investigation of homicides of federal officials, Congress passed a law in 1965 that included investigations of such deaths of federal officials, especially by homicide, within FBI jurisdiction.

Organized crime
In response to organized crime, on August 25, 1953, the FBI created the Top Hoodlum Program. The national office directed field offices to gather information on mobsters in their territories and to report it regularly to Washington for a centralized collection of intelligence on racketeers. After the Racketeer Influenced and Corrupt Organizations Act, or RICO Act, took effect, the FBI began investigating the former Prohibition-organized groups, which had become fronts for crime in major cities and small towns. All the FBI work was done undercover and from within these organizations, using the provisions provided in the RICO Act. Gradually the agency dismantled many of the groups. Although Hoover initially denied the existence of a National Crime Syndicate in the United States, the Bureau later conducted operations against known organized crime syndicates and families, including those headed by Sam Giancana and John Gotti. The RICO Act is still used today for all organized crime and any individuals who may fall under the Act's provisions.

In 2003, a congressional committee called the FBI's organized crime informant program "one of the greatest failures in the history of federal law enforcement." The FBI allowed four innocent men to be convicted of the March 1965 gangland murder of Edward "Teddy" Deegan in order to protect Vincent Flemmi, an FBI informant. Three of the men were sentenced to death (which was later reduced to life in prison), and the fourth defendant was sentenced to life in prison. Two of the four men died in prison after serving almost 30 years, and two others were released after serving 32 and 36 years. In July 2007, U.S. District Judge Nancy Gertner in Boston found that the Bureau had helped convict the four men using false witness accounts given by mobster Joseph Barboza. The U.S. Government was ordered to pay $100 million in damages to the four defendants.

Special FBI teams
In 1982, the FBI formed an elite unit to help with problems that might arise at the 1984 Summer Olympics to be held in Los Angeles, particularly terrorism and major-crime. This was a result of the 1972 Summer Olympics in Munich, Germany, when terrorists murdered the Israeli athletes. Named the Hostage Rescue Team, or HRT, it acts as a dedicated FBI SWAT team dealing primarily with counter-terrorism scenarios. Unlike the special agents serving on local FBI SWAT teams, HRT does not conduct investigations. Instead, HRT focuses solely on additional tactical proficiency and capabilities. Also formed in 1984 was the Computer Analysis and Response Team, or CART.

From the end of the 1980s to the early 1990s, the FBI reassigned more than 300 agents from foreign counter-intelligence duties to violent crime, and made violent crime the sixth national priority. With cuts to other well-established departments, and because terrorism was no longer considered a threat after the end of the Cold War, the FBI assisted local and state police forces in tracking fugitives who had crossed state lines, which is a federal offense. The FBI Laboratory helped develop DNA testing, continuing its pioneering role in identification that began with its fingerprinting system in 1924.

Notable efforts in the 1990s
On May 1, 1992, FBI SWAT and HRT personnel in Los Angeles County, California aided local officials in securing peace within the area during the 1992 Los Angeles riots. HRT operators, for instance, spent 10 days conducting vehicle-mounted patrols throughout Los Angeles, before returning to Virginia.

Between 1993 and 1996, the FBI increased its counter-terrorism role following the first 1993 World Trade Center bombing in New York City, the 1995 Oklahoma City bombing, and the arrest of the Unabomber in 1996. Technological innovation and the skills of FBI Laboratory analysts helped ensure that the three cases were successfully prosecuted. However, Justice Department investigations into the FBI's roles in the Ruby Ridge and Waco incidents were found to have been obstructed by agents within the Bureau. During the 1996 Summer Olympics in Atlanta, Georgia, the FBI was criticized for its investigation of the Centennial Olympic Park bombing. It has settled a dispute with Richard Jewell, who was a private security guard at the venue, along with some media organizations, in regard to the leaking of his name during the investigation; this had briefly led to his being wrongly suspected of the bombing.

After Congress passed the Communications Assistance for Law Enforcement Act (CALEA, 1994), the Health Insurance Portability and Accountability Act (HIPAA, 1996), and the Economic Espionage Act (EEA, 1996), the FBI followed suit and underwent a technological upgrade in 1998, just as it did with its CART team in 1991. Computer Investigations and Infrastructure Threat Assessment Center (CITAC) and the National Infrastructure Protection Center (NIPC) were created to deal with the increase in Internet-related problems, such as computer viruses, worms, and other malicious programs that threatened U.S. operations. With these developments, the FBI increased its electronic surveillance in public safety and national security investigations, adapting to the telecommunications advancements that changed the nature of such problems.

September 11 attacks
During the September 11, 2001, attacks on the World Trade Center, FBI agent Leonard W. Hatton Jr. was killed during the rescue effort while helping the rescue personnel evacuate the occupants of the South Tower, and he stayed when it collapsed. Within months after the attacks, FBI Director Robert Mueller, who had been sworn in a week before the attacks, called for a re-engineering of FBI structure and operations. He made countering every federal crime a top priority, including the prevention of terrorism, countering foreign intelligence operations, addressing cybersecurity threats, other high-tech crimes, protecting civil rights, combating public corruption, organized crime, white-collar crime, and major acts of violent crime.

In February 2001, Robert Hanssen was caught selling information to the Russian government. It was later learned that Hanssen, who had reached a high position within the FBI, had been selling intelligence since as early as 1979. He pleaded guilty to espionage and received a life sentence in 2002, but the incident led many to question the security practices employed by the FBI. There was also a claim that Hanssen might have contributed information that led to the September 11, 2001, attacks.

The 9/11 Commission's final report on July 22, 2004, stated that the FBI and Central Intelligence Agency (CIA) were both partially to blame for not pursuing intelligence reports that could have prevented the September 11 attacks. In its most damning assessment, the report concluded that the country had "not been well served" by either agency and listed numerous recommendations for changes within the FBI. While the FBI did accede to most of the recommendations, including oversight by the new director of National Intelligence, some former members of the 9/11 Commission publicly criticized the FBI in October 2005, claiming it was resisting any meaningful changes.

On July 8, 2007, The Washington Post published excerpts from UCLA Professor Amy Zegart's book Spying Blind: The CIA, the FBI, and the Origins of 9/11. The Post reported, from Zegart's book, that government documents showed that both the CIA and the FBI had missed 23 potential chances to disrupt the terrorist attacks of September 11, 2001. The primary reasons for the failures included: agency cultures resistant to change and new ideas; inappropriate incentives for promotion; and a lack of cooperation between the FBI, CIA, and the rest of the United States Intelligence Community. The book blamed the FBI's decentralized structure, which prevented effective communication and cooperation among different FBI offices. The book suggested that the FBI had not evolved into an effective counter-terrorism or counter-intelligence agency, due in large part to deeply ingrained agency cultural resistance to change. For example, FBI personnel practices continued to treat all staff other than special agents as support staff, classifying intelligence analysts alongside the FBI's auto mechanics and janitors.

Faulty bullet analysis
For over 40 years, the FBI crime lab in Quantico had believed that lead alloys used in bullets had unique chemical signatures. It was analyzing the bullets with the goal of matching them chemically, not only to a single batch of ammunition coming out of a factory, but also to a single box of bullets. The National Academy of Sciences conducted an 18-month independent review of comparative bullet-lead analysis. In 2003, its National Research Council published a report whose conclusions called into question 30 years of FBI testimony. It found the analytic model used by the FBI for interpreting results was deeply flawed, and the conclusion, that bullet fragments could be matched to a box of ammunition, was so overstated that it was misleading under the rules of evidence. One year later, the FBI decided to stop conducting bullet lead analyses.

After a 60 Minutes/The Washington Post investigation in November 2007, two years later, the Bureau agreed to identify, review, and release all pertinent cases, and notify prosecutors about cases in which faulty testimony was given.

Technology
In 2012, the FBI formed the National Domestic Communications Assistance Center to develop technology for assisting law enforcement with technical knowledge regarding communication services, technologies, and electronic surveillance.

January 6th United States Capitol attack
An FBI informant, who participated in the January 6, 2021 attack on democratic institutions in Washington D.C. later testified in support of the Proud boys, who were part of the plot. Revelations about the informant raised fresh questions about intelligence failures by the FBI before the riot. According to the Brennan Center, and Senate committees, the FBI's response to white supremacist violence was "woefully inadequate". The FBI has long been suspected to have turned a blind eye towards right-wing extremists while disseminating "conspiracy theories" on the origin of COVID-19.

Organizational structure

The FBI is organized into functional branches and the Office of the Director, which contains most administrative offices. An executive assistant director manages each branch. Each branch is then divided into offices and divisions, each headed by an assistant director. The various divisions are further divided into sub-branches, led by deputy assistant directors. Within these sub-branches, there are various sections headed by section chiefs. Section chiefs are ranked analogous to special agents in charge. Four of the branches report to the deputy director while two report to the associate director.

The main branches of the FBI are: Each branch focuses on different tasks, and some focus on more than one. Here are some of the tasks that different branches are in charge of:
 * FBI Intelligence Branch
 * Executive Assistant Director: Stephen Laycock
 * FBI National Security Branch
 * Executive Assistant Director: John Brown
 * FBI Criminal, Cyber, Response, and Services Branch
 * Executive Assistant Director: Terry Wade
 * FBI Science and Technology Branch
 * Executive Assistant Director: Darrin E. Jones
 * FBI Information and Technology Branch
 * Executive Assistant Director: Michael Gavin (Acting)
 * FBI Human Resources Branch
 * Executive Assistant Director: Jeffrey S. Sallet

FBI Headquarters Washington D.C.
National Security Branch (NSB)

 * Counterintelligence Division (CD)
 * Counterterrorism Division (CTD)
 * Weapons of Mass Destruction Directorate (WMDD)
 * High-Value Detainee Interrogation Group (HIG)
 * Terrorist Screening Center (TSC)

Intelligence Branch (IB)

 * Directorate of Intelligence (DI)
 * Office of Partner Engagement (OPE)
 * Office of Private Sector

FBI Criminal, Cyber, Response, and Services Branch (CCRSB)

 * Criminal Investigation Division (CID)
 * Violent Crime Section (VCS)
 * Child Exploitation Operational Unit (CEOU) a joint unit between the FBI and U.S. Homeland Security Investigations (HSI) - Located in Boston Mass.
 * Violent Crimes Against Children Section (VCACS)
 * Major Case Coordination Unit (MCCU)
 * Cyber Division (CyD)
 * Critical Incident Response Group (CIRG)
 * International Operation Division (IOD)
 * Victim Services Division

Science and Technology Branch (STB)

 * Operational Technology Division (OTD)
 * Laboratory Division (LD)
 * Criminal Justice Information Services (CJIS) Division

Other Headquarter Offices
Information and Technology Branch (ITB)

 * IT Enterprise Services Division (ITESD)
 * IT Applications and Data Division (ITADD)
 * IT Infrastructure Division (ITID)
 * IT Management Division
 * IT Engineering Division
 * IT Services Division

Human Resources Branch (HRB)

 * Training Division (TD)
 * Human Resources Division (HRD)
 * Security Division (SecD)

Administrative and financial management support

 * Facilities and Logistics Services Division (FLSD)
 * Finance Division (FD)
 * Records Management Division (RMD)
 * Resource Planning Office (RPO)
 * Inspection Division (InSD)

Office of the Director
The Office of the Director serves as the central administrative organ of the FBI. The office provides staff support functions (such as finance and facilities management) to the five function branches and the various field divisions. The office is managed by the FBI associate director, who also oversees the operations of both the Information and Technology and Human Resources Branches.

Senior staff

 * Deputy director
 * Associate deputy director
 * Chief of staff

Office of the Director
 * Finance and Facilities Division
 * Information Management Division
 * Insider Threat Office
 * Inspection Division
 * Office of the Chief Information Officer
 * Office of Congressional Affairs (OCA)
 * Office of Diversity and Inclusion
 * Office of Equal Employment Opportunity Affairs (OEEOA)
 * Office of the General Counsel (OGC)
 * Office of Integrity and Compliance (OIC)
 * Office of Internal Auditing
 * Office of the Ombudsman
 * Office of Professional Responsibility (OPR)
 * Office of Public Affairs (OPA)
 * Resource Planning Office

Rank structure
The following is a listing of the rank structure found within the FBI (in ascending order):
 * Field agents
 * New agent trainee
 * Special agent
 * Senior special agent
 * Supervisory special agent
 * Assistant special agent-in-charge (ASAC)
 * Special agent-in-charge (SAC)Mueller comey obama september 2013.jpg speaks at the White House following his nomination by President Barack Obama to be the next director of the FBI, June 21, 2013.]]
 * FBI management
 * Deputy assistant director
 * Assistant director
 * Associate executive assistant director
 * Executive assistant director
 * Associate deputy director
 * Deputy chief of staff
 * Chief of staff and special counsel to the director
 * Deputy director
 * Director

Legal authority

The FBI's mandate is established in Title 28 of the United States Code (U.S. Code), Section 533, which authorizes the Attorney General to "appoint officials to detect and prosecute crimes against the United States." Other federal statutes give the FBI the authority and responsibility to investigate specific crimes.

The FBI's chief tool against organized crime is the Racketeer Influenced and Corrupt Organizations (RICO) Act. The FBI is also charged with the responsibility of enforcing compliance of the United States Civil Rights Act of 1964 and investigating violations of the act in addition to prosecuting such violations with the United States Department of Justice (DOJ). The FBI also shares concurrent jurisdiction with the Drug Enforcement Administration (DEA) in the enforcement of the Controlled Substances Act of 1970.

The USA PATRIOT Act increased the powers allotted to the FBI, especially in wiretapping and monitoring of Internet activity. One of the most controversial provisions of the act is the so-called sneak and peek provision, granting the FBI powers to search a house while the residents are away, and not requiring them to notify the residents for several weeks afterward. Under the PATRIOT Act's provisions, the FBI also resumed inquiring into the library records of those who are suspected of terrorism (something it had supposedly not done since the 1970s).

In the early 1980s, Senate hearings were held to examine FBI undercover operations in the wake of the Abscam controversy, which had allegations of entrapment of elected officials. As a result, in the following years a number of guidelines were issued to constrain FBI activities.

Information obtained through an FBI investigation is presented to the appropriate U.S. Attorney or Department of Justice official, who decides if prosecution or other action is warranted.

The FBI often works in conjunction with other federal agencies, including the U.S. Coast Guard (USCG) and U.S. Customs and Border Protection (CBP) in seaport and airport security, and the National Transportation Safety Board in investigating airplane crashes and other critical incidents. Immigration and Customs Enforcement's Homeland Security Investigations (HSI) has nearly the same amount of investigative manpower as the FBI and investigates the largest range of crimes. In the wake of the September 11 attacks, then–Attorney General Ashcroft assigned the FBI as the designated lead organization in terrorism investigations after the creation of the U.S. Department of Homeland Security. HSI and the FBI are both integral members of the Joint Terrorism Task Force.

Indian reservations

The federal government has the primary responsibility for investigating and prosecuting serious crime on Indian reservations.

"There are 565 federally recognized American Indian Tribes in the United States, and the FBI has federal law enforcement responsibility on nearly 200 Indian reservations. This federal jurisdiction is shared concurrently with the Bureau of Indian Affairs, Office of Justice Services (BIA-OJS).

Located within the FBI's Criminal Investigative Division, the Indian Country Crimes Unit (ICCU) is responsible for developing and implementing strategies, programs, and policies to address identified crime problems in Indian Country (IC) for which the FBI has responsibility."

The FBI does not specifically list crimes in Native American land as one of its priorities. Often serious crimes have been either poorly investigated or prosecution has been declined. Tribal courts can impose sentences of up to three years, under certain restrictions.

Infrastructure

The FBI is headquartered at the J. Edgar Hoover Building in Washington, D.C., with 56 field offices in major cities across the United States. The FBI also maintains over 400 resident agencies across the United States, as well as over 50 legal attachés at United States embassies and consulates. Many specialized FBI functions are located at facilities in Quantico, Virginia, as well as a "data campus" in Clarksburg, West Virginia, where 96 million sets of fingerprints "from across the United States are stored, along with others collected by American authorities from prisoners in Saudi Arabia and Yemen, Iraq and Afghanistan." The FBI is in process of moving its Records Management Division, which processes Freedom of Information Act (FOIA) requests, to Winchester, Virginia.

According to The Washington Post, the FBI "is building a vast repository controlled by people who work in a top-secret vault on the fourth floor of the J. Edgar Hoover Building in Washington. This one stores the profiles of tens of thousands of Americans and legal residents who are not accused of any crime. What they have done is appear to be acting suspiciously to a town sheriff, a traffic cop or even a neighbor."

The FBI Laboratory, established with the formation of the BOI, did not appear in the J. Edgar Hoover Building until its completion in 1974. The lab serves as the primary lab for most DNA, biological, and physical work. Public tours of FBI headquarters ran through the FBI laboratory workspace before the move to the J. Edgar Hoover Building. The services the lab conducts include Chemistry, Combined DNA Index System (CODIS), Computer Analysis and Response, DNA Analysis, Evidence Response, Explosives, Firearms and Tool marks, Forensic Audio, Forensic Video, Image Analysis, Forensic Science Research, Forensic Science Training, Hazardous Materials Response, Investigative and Prospective Graphics, Latent Prints, Materials Analysis, Questioned Documents, Racketeering Records, Special Photographic Analysis, Structural Design, and Trace Evidence. The services of the FBI Laboratory are used by many state, local, and international agencies free of charge. The lab also maintains a second lab at the FBI Academy.

The FBI Academy, located in Quantico, Virginia, is home to the communications and computer laboratory the FBI utilizes. It is also where new agents are sent for training to become FBI special agents. Going through the 21-week course is required for every special agent. First opened for use in 1972, the facility is located on 385 acre of woodland. The Academy trains state and local law enforcement agencies, which are invited to the law enforcement training center. The FBI units that reside at Quantico are the Field and Police Training Unit, Firearms Training Unit, Forensic Science Research and Training Center, Technology Services Unit (TSU), Investigative Training Unit, Law Enforcement Communication Unit, Leadership and Management Science Units (LSMU), Physical Training Unit, New Agents' Training Unit (NATU), Practical Applications Unit (PAU), the Investigative Computer Training Unit and the "College of Analytical Studies".

In 2000, the FBI began the Trilogy project to upgrade its outdated information technology (IT) infrastructure. This project, originally scheduled to take three years and cost around $380 million, ended up over budget and behind schedule. Efforts to deploy modern computers and networking equipment were generally successful, but attempts to develop new investigation software, outsourced to Science Applications International Corporation (SAIC), were not. Virtual Case File, or VCF, as the software was known, was plagued by poorly defined goals, and repeated changes in management.

In January 2005, more than two years after the software was originally planned for completion, the FBI abandoned the project. At least $100 million, and much more by some estimates, was spent on the project, which never became operational. The FBI has been forced to continue using its decade-old Automated Case Support system, which IT experts consider woefully inadequate. In March 2005, the FBI announced it was beginning a new, more ambitious software project, code-named Sentinel, which they expected to complete by 2009.

Carnivore was an electronic eavesdropping software system implemented by the FBI during the Clinton administration; it was designed to monitor email and electronic communications. After prolonged negative coverage in the press, the FBI changed the name of its system from "Carnivore" to "DCS1000". DCS is reported to stand for "Digital Collection System"; the system has the same functions as before. The Associated Press reported in mid-January 2005 that the FBI essentially abandoned the use of Carnivore in 2001, in favor of commercially available software, such as NarusInsight.

The Criminal Justice Information Services (CJIS) Division is located in Clarksburg, West Virginia. Organized beginning in 1991, the office opened in 1995 as the youngest agency division. The complex is the length of three football fields. It provides a main repository for information in various data systems. Under the roof of the CJIS are the programs for the National Crime Information Center (NCIC), Uniform Crime Reporting (UCR), Fingerprint Identification, Integrated Automated Fingerprint Identification System (IAFIS), NCIC 2000, and the National Incident-Based Reporting System (NIBRS). Many state and local agencies use these data systems as a source for their own investigations and contribute to the database using secure communications. FBI provides these tools of sophisticated identification and information services to local, state, federal, and international law enforcement agencies.

The FBI heads the National Virtual Translation Center, which provides "timely and accurate translations of foreign intelligence for all elements of the Intelligence Community."

In June 2021, the FBI held a groundbreaking for its planned FBI Innovation Center, set to be built in Huntsville, Alabama. The Innovation Center is to be part of a large, college-like campus costing a total of $1.3 billion in Redstone Arsenal and will act as a center for cyber threat intelligence, data analytics, and emerging threat training.

Personnel

, the FBI had a total of 33,852 employees. That includes 13,412 special agents and 20,420 support professionals, such as intelligence analysts, language specialists, scientists, information technology specialists, and other professionals.

The Officer Down Memorial Page provides the biographies of 86 FBI agents who have died in the line of duty from 1925 to February 2021.

Hiring process
To apply to become an FBI agent, one must be between the ages of 23 and 37, unless one is a preference-eligible veteran, in which case one may apply after age 37. The applicant must also hold U.S. citizenship, be of high moral character, have a clean record, and hold at least a four-year bachelor's degree. At least three years of professional work experience prior to application is also required. All FBI employees require a Top Secret (TS) security clearance, and in many instances, employees need a TS/SCI (Top Secret/Sensitive Compartmented Information) clearance.

To obtain a security clearance, all potential FBI personnel must pass a series of Single Scope Background Investigations (SSBI), which are conducted by the Office of Personnel Management. Special agent candidates also have to pass a Physical Fitness Test (PFT), which includes a 300-meter run, one-minute sit-ups, maximum push-ups, and a 1.5 mi run. Personnel must pass a polygraph test with questions including possible drug use. Applicants who fail polygraphs may not gain employment with the FBI. Up until 1975, the FBI had a minimum height requirement of 5 ft.

BOI and FBI directors
FBI directors are appointed (nominated) by the President of the United States and must be confirmed by the United States Senate to serve a term of office of ten years, subject to resignation or removal by the President at his/her discretion before their term ends. Additional terms are allowed following the same procedure.

J. Edgar Hoover, appointed by President Calvin Coolidge in 1924, was by far the longest-serving director, serving until his death in 1972. In 1968, Congress passed legislation, as part of the Omnibus Crime Control and Safe Streets Act of 1968, requiring Senate confirmation of appointments of future directors. As the incumbent, this legislation did not apply to Hoover. The last FBI director was Andrew McCabe. The current FBI director is Christopher A. Wray, appointed by President Donald Trump.

The FBI director is responsible for the day-to-day operations at the FBI. Along with the deputy director, the director makes sure cases and operations are handled correctly. The director also is in charge of making sure the leadership in the FBI field offices is staffed with qualified agents. Before the Intelligence Reform and Terrorism Prevention Act was passed in the wake of the September 11 attacks, the FBI director would directly brief the President of the United States on any issues that arise from within the FBI. Since then, the director now reports to the Director of National Intelligence (DNI), who in turn reports to the President.

Firearms

Upon qualification, an FBI special agent is issued a full-size Glock 22 or compact Glock 23 semi-automatic pistol, both of which are chambered in the .40 S&W cartridge. In May 1997, the FBI officially adopted the Glock, in .40 S&W, for general agent use, and first issued it to New Agent Class 98-1 in October 1997. At present, the Glock 23 "FG&R" (finger groove and rail; either 3rd generation or "Gen4") is the issue sidearm.

New agents are issued firearms, on which they must qualify, on successful completion of their training at the FBI Academy. The Glock 26 (subcompact 9 mm Parabellum), Glock 23 and Glock 27 (.40 S&W compact and subcompact, respectively) are authorized as secondary weapons. Special agents are also authorized to purchase and qualify with the Glock 21 in .45 ACP.

Special agents of the FBI Hostage Rescue Team (HRT) and regional SWAT teams are issued the Springfield Armory Professional Model 1911 pistol in .45 ACP.

In June 2016, the FBI awarded Glock a contract for new handguns. Unlike the currently issued .40 S&W chambered Glock pistols, the new Glocks will be chambered for 9 mm Parabellum. The contract is for the full-size Glock 17M and the compact Glock 19M. The "M" means the Glocks have been modified to meet government standards specified by a 2015 government request for proposal.

Publications
The FBI Law Enforcement Bulletin is published monthly by the FBI Law Enforcement Communication Unit, with articles of interest to state and local law enforcement personnel. First published in 1932 as Fugitives Wanted by Police, the FBI Law Bulletin covers topics including law enforcement technology and issues, such as crime mapping and use of force, as well as recent criminal justice research, and ViCAP alerts, on wanted suspects and key cases.

The FBI also publishes some reports for both law enforcement personnel as well as regular citizens covering topics including law enforcement, terrorism, cybercrime, white-collar crime, violent crime, and statistics. The vast majority of federal government publications covering these topics are published by the Office of Justice Programs agencies of the United States Department of Justice, and disseminated through the National Criminal Justice Reference Service.

Crime statistics
During the 1920s the FBI began issuing crime reports by gathering numbers from local police departments. Due to limitations of this system that were discovered during the 1960s and 1970s—victims often simply did not report crimes to the police in the first place—the Department of Justice developed an alternative method of tallying crime, the victimization survey.

Uniform Crime Reports
The Uniform Crime Reports (UCR) compile data from over 17,000 law enforcement agencies across the country. They provide detailed data regarding the volume of crimes to include arrest, clearance (or closing a case), and law enforcement officer information. The UCR focuses its data collection on violent crimes, hate crimes, and property crimes. Created in the 1920s, the UCR system has not proven to be as uniform as its name implies. The UCR data only reflect the most serious offense in the case of connected crimes and has a very restrictive definition of rape. Since about 93% of the data submitted to the FBI is in this format, the UCR stands out as the publication of choice as most states require law enforcement agencies to submit this data.

Preliminary Annual Uniform Crime Report for 2006 was released on June 4, 2006. The report shows violent crime offenses rose 1.3%, but the number of property crime offenses decreased 2.9% compared to 2005.

National Incident-Based Reporting System
The National Incident-Based Reporting System (NIBRS) crime statistics system aims to address limitations inherent in UCR data. The system is used by law enforcement agencies in the United States for collecting and reporting data on crimes. Local, state, and federal agencies generate NIBRS data from their records management systems. Data is collected on every incident and arrest in the Group A offense category. The Group A offenses are 46 specific crimes grouped in 22 offense categories. Specific facts about these offenses are gathered and reported in the NIBRS system. In addition to the Group A offenses, eleven Group B offenses are reported with only the arrest information. The NIBRS system is in greater detail than the summary-based UCR system. , 5,271 law enforcement agencies submitted NIBRS data. That amount represents 20% of the United States population and 16% of the crime statistics data collected by the FBI.

eGuardian
eGuardian is the name of an FBI system, launched in January 2009, to share tips about possible terror threats with local police agencies. The program aims to get law enforcement at all levels sharing data quickly about suspicious activity and people.

eGuardian enables near real-time sharing and tracking of terror information and suspicious activities with local, state, tribal, and federal agencies. The eGuardian system is a spin-off of a similar but classified tool called Guardian that has been used inside the FBI, and shared with vetted partners since 2005.

Controversies
Throughout its history, the FBI has been the subject of many controversies, both at home and abroad.

 * Files on Puerto Rican independence advocates – Congressman Luiz Gutierrez revealed that Pedro Albizu Campos and his Nationalist political party had been watched for a decade-long period in the 1930s.
 * The Whitey Bulger case – The FBI was, and continues to be, criticized for its handling of Boston criminal Whitey Bulger. As a result of Bulger acting as an informant, the agency turned a blind eye to his activities as an exchange.
 * Latin America – For decades during the Cold War, the FBI placed agents to monitor the governments of Caribbean and Latin American nations.
 * Domestic surveillance – In 1985, it was found that the FBI had made use of surveillance devices on numerous American citizens between 1940 and 1960.
 * Robert Hanssen – In what is described by the US Department of Justice (DOJ) as "possibly the worst intelligence disaster in U.S. history". Hanssen managed to evade the FBI as he simultaneously sold thousands of classified American documents to Soviet intelligence operatives.
 * Viola Liuzzo – Gary Thomas Rowe, an FBI informant who at the time was also an active member of the Ku Klux Klan, assisted in the murder of Viola Liuzzo (a civil rights activist) in 1965, and afterwards, defamatory rumors were spread by the Bureau about the victim.
 * Ruby Ridge (1992) was a shootout between the FBI and Randy Weaver over his failure to appear for weapons charges.
 * Waco siege (1993) was a failed raid by the ATF that resulted in the death of 4 ATF agents and 6 Branch Davidians. The FBI and US military got involved with the 51 day siege that followed. The building ended up burning down killing 76 including 26 children. This is what motivated Timothy McVeigh (along with Ruby Ridge) to carry out the Oklahoma City bombing (1995).
 * Associated Press (AP) impersonation case – A Bureau agent, masquerading as an AP journalist, placed surveillance software in the personal computer of a minor. This resulted in a series of conflicts between the news agency and the FBI.
 * Stoneman Douglas High School shooting – A statement from the FBI confirmed that it had failed to act on a tip warning of the possibility of the shooting over a month prior to its occurrence, which may have prevented the tragedy outright.

Specific practices include:

 * Internal investigations of shootings – A professor of criminal justice at the University of Nebraska Omaha suggested that FBI internal reports found a questionably high number of weapon discharges by its agents to be justified.
 * Covert operations on political groups – Political groups deemed disruptive have been investigated and discredited by the FBI in the aim of "protecting national security, preventing violence, and maintaining the existing social and political order."
 * FBI surveillance since 2010 – In the years since 2010, it has been uncovered by various civil liberties groups (such as the American Civil Liberties Union [ACLU]) that the FBI earmarked disproportionate resources for the surveillance of left-leaning movements and political organizations. The FBI has also committed several breaches of the First Amendment in this time.
 * Files on U.S. citizens – The Bureau kept files on certain individuals for varying reasons and lengths of time, notably, Elvis Presley, Frank Sinatra, John Denver.
 * Entrapment - The FBI has been criticized for its use of entrapment, where agent provocateurs attempt to incite individuals into committing illegal acts. Notable critics of FBI entrapment such as Human Rights Watch and the ACLU note that entrapment cases often target impoverished individuals or those with mental or emotional disabilities and that these cases have an adverse effect on marginalized groups.

Media portrayal
The FBI has been frequently depicted in popular media since the 1930s. The bureau has participated to varying degrees, which has ranged from direct involvement in the creative process of film or TV series development, to providing consultation on operations and closed cases. A few of the notable portrayals of the FBI on television are the series The X-Files, which started in 1993 and concluded its eleventh season in early 2018, and concerned investigations into paranormal phenomena by five fictional special agents, and the fictional Counter Terrorist Unit (CTU) agency in the TV drama 24, which is patterned after the FBI Counterterrorism Division.

The 1991 movie Point Break depicts an undercover FBI agent who infiltrated a gang of bank robbers. The 1997 movie Donnie Brasco is based on the true story of undercover FBI agent Joseph D. Pistone infiltrating the Mafia. The 2005–2020 television series Criminal Minds, that follows the team members of the FBI's Behavioral Analysis Unit (BAU) in the pursuit of serial killers. The 2017 TV series Riverdale where one of the main characters is an FBI agent. The 2015 TV series Quantico, titled after the location of the Bureau's training facility, deals with probationary and special agents, not all of whom, within the show's format, may be fully reliable or even trustworthy.

The 2018 series FBI, set in NYC that follows the personal and professional lives of the agents assigned to 26 Federal Plaza (NYC FBI field office). FBI first spin-off titled FBI: Most Wanted (2019), follows the FBI's Fugitive Task Force in chasing down the US's most wanted criminals, and the second spin-off, FBI: International (2021), follows the FBI's International Fly Team that goes where ever they are needed in the world to protect the US's interests.

Notable FBI personnel

 * Edwin Atherton
 * Ed Bethune
 * James Comey
 * Alaska P. Davidson
 * Sibel Edmonds
 * W. Mark Felt
 * James R. Fitzgerald
 * Robert Hanssen
 * J. Edgar Hoover
 * Lon Horiuchi
 * John McClurg
 * Richard Miller
 * Robert Mueller
 * Eric O'Neill
 * John P. O'Neill
 * Joseph D. Pistone
 * Melvin Purvis
 * Coleen Rowley
 * Ali Soufan
 * Sue Thomas
 * Clyde Tolson
 * Frederic Whitehurst

title: Federal Bureau of Investigation