In 1960, John F. Kennedy ran to the right of Richard Nixon, arguing that under Republicans, the United States had become too weak in the cold war. A dozen years later, the Democratic presidential candidate was George McGovern. How did the Democratics go from hawks to doves in just twelve years? And what does the history of the Left imply for John Kerry, the Democratic Party, and the war on terror today? Peter Robinson speaks with Anne Applebaum and Christopher Hitchens.