There has long been suspicion of a government cover-up of information about the assassination of John F. Kennedy on November 22, 1963. There are also many conspiracy theories regarding the assassination that arose soon after his death and continue to be promoted today. Most put forth a criminal conspiracy involving parties as varied as the CIA, the KGB, the American Mafia, Mossad, FBI director J. Edgar Hoover, former Vice President Richard Nixon, sitting Vice President Lyndon B. Johnson, Cuban president Fidel Castro, anti-Castro Cuban exile groups, the Federal Reserve, the military-industrial complex, representatives of Big Business, or some combination of those entities and individuals.