Book excerpt: 2013 is the 50th Anniversary of JFK’s assassination. A narrative of Kennedy's quest to create a speech that would distill American dreams and empower a new generation, Ask Not is a beautifully detailed account of the inauguration and the weeks preceding it. During a time when America was divided, and its citizens torn by fears of war, John F. Kennedy took office and sought to do more than just reassure the American people. His speech marked the start of a brief, optimistic era. Thurston Clarke's portrait of JFK is balanced, revealing the president at his most dazzlingly charismatic and cunningly pragmatic. Thurston Clarke's latest book, JFK's Last Hundred Days, is currently available in hardcover.