When a rock hits the calm surface of a pond, ripples form at the point of impact and travel outward in expanding circles. The story begins with a young man and his dream - a dream of overcoming his health problems and flying for the Air Force. The boy, Ryan Penne, 14, of Chico, Calif., stepped into dreamland last year at Beale Air Force Base, Calif., when he and his family were guests of Col. Darryl W. Burke - then the 9th Reconnaissance Wing's vice commander - for a comprehensive base tour as part of the Make-A-Wish program. Ryan suffers...