Longtime dictator Fidel Castro who until recently had led Cuba for nearly half a century was the subject of multiple assassination attempts, many of them in the 1960s. At the height of the Cold War, the CIA came up with a variety of creative, if not necessarily successful, schemes to assassinate or at least discredit the leader. The agency thought of everything from contaminated cigars to exploding seashells to mobster-administered poison pills to chemicals on Castro's shoes that would cause his forceful beard to fall out to ...