Federal Bureau of Investigation

J. Edgar Hoover, FBI director from 1924 to 1972
The "suicide letter", mailed anonymously to King by the FBI
An FBI surveillance photograph of Joseph D. Pistone (aka Donnie Brasco), Benjamin "Lefty" Ruggiero and Edgar Robb (aka Tony Rossi), 1980s
FBI SWAT agents in a training exercise
An FBI agent tags the cockpit voice recorder from EgyptAir Flight 990 on the deck of the USS Grapple (ARS 53) at the crash site on November 13, 1999.
September 11 attacks at the Pentagon
FBI field divisions map
Organization chart for the FBI as of July 15, 2014
An FBI agent at a crime scene
FBI badge and service pistol, a Glock Model 22, .40 S&W caliber
FBI Director James Comey visiting the Fort Berthold Indian Reservation in North Dakota in June 2016.
The J. Edgar Hoover Building, FBI Headquarters
FBI Mobile Command Center, Washington Field Office
The FBI Academy, located in Quantico, Virginia
The FBI Field Office in Chelsea, Massachusetts
An FBI Evidence Response Team
Agents in training on the FBI Academy firing range
A Glock 22 pistol in .40 S&W caliber
Publication following the 2021 United States Capitol attack
The popular TV series The X-Files depicts the fictional FBI Special Agents Dana Scully (Gillian Anderson) and Fox Mulder (David Duchovny) who investigate paranormal phenomena.

Domestic intelligence and security service of the United States and its principal federal law enforcement agency.

- Federal Bureau of Investigation

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Communist Party USA

Communist party in the United States established in 1919 after a split in the Socialist Party of America following the Russian Revolution.

Communist party in the United States established in 1919 after a split in the Socialist Party of America following the Russian Revolution.

Charter for a local unit of the CPUSA dated October 24, 1919
The 30th National Convention was held in Chicago in 2014
Robert G. Thompson and Benjamin J. Davis leaving the courthouse during the Smith Act trials of Communist Party leaders in 1949–1958
May Day parade with banners and flags, New York
1976 presidential campaign poster

By 1957, membership had dwindled to less than 10,000, of whom some 1,500 were informants for the FBI.

Director of National Intelligence

Senior, cabinet-level United States government official, required by the Intelligence Reform and Terrorism Prevention Act of 2004 to serve as executive head of the United States Intelligence Community (IC) and to direct and oversee the National Intelligence Program (NIP).

Senior, cabinet-level United States government official, required by the Intelligence Reform and Terrorism Prevention Act of 2004 to serve as executive head of the United States Intelligence Community (IC) and to direct and oversee the National Intelligence Program (NIP).

Earlier in his career, he was an assistant director at the FBI, in charge of their Laboratory Division from 1997 to 2001.

Bulger in 2011

Whitey Bulger

Bulger in 2011
Bulger's mugshot at Alcatraz (1959; age 30)
Stephen Flemmi
FBI surveillance photograph of Bulger with enforcer Stephen Flemmi, c. 1980
Photograph taken in 1994 (age 65)
New York Public Library Main Branch, 42nd Street and 5th Avenue
Digital age progression of Bulger done in 2004, in efforts toward his arrest
The apartment building in Santa Monica, California, where Bulger lived as a fugitive for at least 15 years
Some of the weapons found in Bulger's apartment
Catherine E. Greig, Bulger's girlfriend
The United States Federal Correctional Complex Coleman where Bulger was held until October 2018
United States Penitentiary, Hazelton, where Bulger was killed

James Joseph "Whitey" Bulger Jr. (September 3, 1929 – October 30, 2018) was an American organized crime boss and FBI informant who led the Winter Hill Gang in the Winter Hill neighborhood of Somerville, Massachusetts, a city directly northwest of Boston.

Robert Hanssen

Footbridge in Foxstone Park near Vienna, Virginia - where Hanssen was arrested after placing a package for pick-up by his Russian handlers
Hanssen's mug shot, taken on the day of his arrest
United States Penitentiary, Florence ADX, where Hanssen is incarcerated

Robert Philip Hanssen (born April 18, 1944) is an American former Federal Bureau of Investigation (FBI) double agent who spied for Soviet and Russian intelligence services against the United States from 1979 to 2001.

CTD logo

FBI Counterterrorism Division

CTD logo

The Counterterrorism Division (CTD) is a division of the National Security Branch of the Federal Bureau of Investigation.

The Mount Carmel Center engulfed in flames on April 19, 1993

Waco siege

The law enforcement siege of the compound that belonged to the religious sect Branch Davidians.

The law enforcement siege of the compound that belonged to the religious sect Branch Davidians.

The Mount Carmel Center engulfed in flames on April 19, 1993
Vernon Howell (later David Koresh) in a 1987 mug shot
The Branch Davidian compound—Mount Carmel Center—as photographed during the ensuing siege
Remains of a swimming pool left on the grounds of Mount Carmel Center in 1997
The destroyed Alfred Murrah Federal Building
A memorial to the four ATF agents killed in the February 28 raid on the Mount Carmel Center

Upon the ATF's entering of the property and failure to execute the search warrant, a siege lasting 51 days was initiated by the Federal Bureau of Investigation (FBI).

Melvin Purvis

Melvin Horace Purvis II (October 24, 1903 – February 29, 1960) was an American law enforcement official and Federal Bureau of Investigation (FBI) agent.

Lester Joseph Gillis

Baby Face Nelson

American bank robber who became a criminal partner of John Dillinger, when he helped Dillinger escape from prison, in Crown Point, Indiana.

American bank robber who became a criminal partner of John Dillinger, when he helped Dillinger escape from prison, in Crown Point, Indiana.

Lester Joseph Gillis
A plaque at the Barrington Park District in Barrington, Illinois, commemorates the lives of the three FBI agents killed by Nelson

A violent bank robber, Lester Joseph Gillis killed more agents of the FBI than has any other criminal.

James Comey

American lawyer who was the 7th director of the Federal Bureau of Investigation (FBI) from 2013 until his dismissal in May 2017.

American lawyer who was the 7th director of the Federal Bureau of Investigation (FBI) from 2013 until his dismissal in May 2017.

Comey as a US Attorney
Comey, President Obama, and outgoing FBI Director Robert Mueller at Comey's nomination to become FBI Director, June 21, 2013
Comey at the Oval Office following the San Bernardino attack, December 3, 2015
Obama receives an update from Comey and Homeland Security Advisor Lisa Monaco on the Orlando nightclub shooting, June 12, 2016
Comey at annual FBI and Birmingham Civil Rights Institute conference, May 25, 2016
Comey's October letter

In early March 2004, Federal Bureau of Investigation director Robert S. Mueller III and Comey had prepared their resignations if the White House overruled the DOJ's finding that the program was unconstitutional.

Picture of Gregg, 1949

Viola Liuzzo

American civil rights activist.

American civil rights activist.

Picture of Gregg, 1949
Memorial to Viola Fauver Gregg Liuzzo in Lowndes County, Alabama

At the age of 39, while driving back from a trip shuttling fellow activists to the Montgomery airport, she was fatally hit by shots fired from a pursuing car containing Ku Klux Klan members Collie Wilkins, William Eaton, Eugene Thomas, and Gary Thomas Rowe, the last of whom was actually an undercover informant working for the Federal Bureau of Investigation (FBI).