The murder of President Kennedy was a seminal event for me and for millions of Americans. It changed the course of history. It was a crushing blow to our country and to millions of people around the world. Today, ... profound doubts persist about how President Kennedy was killed and why. My film JFK" was a metaphor for all those doubts, suspicions and unanswered questions. Now an extraordinary new book offers the best account I have read of this tragedy and its significance. That book is James Douglass's JFK and the Unspeakable: Why He Died and Why It Matters. In his beautifully written and exhaustively researched treatment, Douglass lays out the "motive" for Kennedy's assassination. Simply, he traces a process of steady conversion by Kennedy from his origins as a traditional Cold Warrior to his determination to pull the world back from the edge of destruction. Many of these steps are well known, such as Kennedy's disillusionment with the CIA after the disastrous Bay of Pigs Invasion, and his refusal to follow the reckless recommendations of the Joint Chiefs of Staff in resolving the Cuban Missile Crisis. But many of his steps remain unfamiliar: Kennedy's back-channel dialogue with Khrushchev and their shared pursuit of common ground; his secret opening to dialogue with Fidel Castro (ongoing the very week of his assassination); and his determination to pull out of Vietnam after his probable re-election in 1964. All of these steps caused him to be regarded as a virtual traitor by elements of the military-intelligence community. These were the forces that planned and carried out his assassination.