A Federal Air Marshal is a law enforcement officer charged with maintaining the safety and security of passenger aircraft and airports in the United States. Air Marshals are assigned to the United States Transportation Security Administration (TSA) which is an agency within the U.S. Department of Homeland Security. The specific number of air marshals that are currently employed by the U.S. Government is classified but is believed to be in the thousands.
The Federal Air Marshal Service originated in the early 1960s during the Kennedy Administration as a reaction to an increased number of hijackings of aircraft flying between the U.S. and Cuba. The Air Marshal Service was further expanded by President Ronald Reagan in the mid 1980s after the much publicized hijacking of Trans World Airways (TWA) Flight 847 in the Middle East. After the terrorist attacks on the United States on 11 September 2001 the service was expanded once more by President George W. Bush, from approximately 30 air marshals to several thousand, to meet the growing threat to American airlines and airports posed by global terrorism.
The Federal Air Marshal Service (FAMS) is a United States federal law enforcement agency under the supervision of the Transportation Security Administration (TSA) of the United States Department of Homeland Security (DHS). "The Air Marshal Service is meant to promote confidence in civil aviation by effectively deploying federal air marshals (FAMs) to detect, deter, and defeat hostile acts targeting the United States.
They play two separate functions.
he FBI's activities are closely and regularly scrutinized by a variety of entities. Congress—through several oversight committees in the Senate and House—reviews the FBI's budget appropriations, programs, and selected investigations. The results of FBI investigations are often reviewed by the judicial system during court proceedings. Within the U.S. Department of Justice, the FBI is responsible to the attorney general, and it reports its findings to U.S. Attorneys across the country. The FBI’s intelligence activities are overseen by the Director of National Intelligence.