In this gripping memoir, John F. Kennedy's closest advisor recounts in full for the first time his experience counseling Kennedy through the most dramatic moments in American history.... from the decision to go to the moon to the Cuban Missile Crisis, when JFK requested that the thirty-four-year-old Sorensen draft the key letter to Khrushchev at the most critical point of the world's first nuclear confrontation. After Kennedy was assassinated, Sorensen...