Robert Kennedy briefs the FBI on plans to assassinate Castro: "Robert Kennedy following his briefing in May of 1962
informed the FBI on May 9, 1962 about the briefing. "He (Robert
Kennedy) indicated that a few days prior thereto he had been advised
by CIA" that an intermediary had been hired by CIA to approach Sam
Giancana with a proposition of paying $150, 000 to hire some gunman
to go into Cuba and kill Castro. "