The Federal Bureau of Investigation (FBI) is the domestic intelligence and security service of the United States and the prime federal law enforcement agency in the country. The FBI was founded on 26 July 1908 as the Bureau of Investigation (BOI), and the FBI handles domestic security from 56 field offices across the country. The FBI handles counterterrorism, national security, counterintelligence, and criminal investigations, and its director J. Edgar Hoover would lead the FBI in fighting against the Communist Party USA, the Civil Rights movement, feminists, the Puerto Rican nationalist movement, the American Mafia, and other organizations deemed "subversive", using its COINTELPRO program from 1954 to 1971. In 2014, the FBI had 35,104 employees.

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