THE WAR HAD ENDED... AND BILL KETCHUM'S dad came home, altered somehow from the man he'd been before. Growing up around military air bases, young Bill tried to understand his father's mysterious world-the world of aviation and quiet people who dedicate their lives to great causes. As an adult, he found a place in that world. His role was to help create rockets that might keep his homeland safe, if a new war erupted. Then, when...