In the fall of 1963, as John Kennedy and Fidel Castro sought secretly a way of rapprochement, the CIA took its own secret steps in an opposite direction, toward setting up Lee Harvey Oswald as an identifiable Soviet-and-Cuban-directed assassin of the president. “Sheepdipping,” the process whereby sheep are plunged into a liquid to destroy parasites, had been applied in its intelligence sense to Oswald in New Orleans.
