John F. Kennedy strolled through his brief life as a charismatic dreamer who persuaded fellow believers to join him in peeking around the bend. He looked at the moon and promised Americans would walk there. He stretched our nation's sense of what was possible, in sunshine and in sorrow. He was about the promise of tomorrow until a still-mysterious day in Dallas ended his tomorrows. On June 5, 1963, this stupendously glamorous president descended from a clear Colorado Springs sky to speak at Air Force Academy's graduation.