Pilot duped AMA with fake M.D. claim

He seemed like Superman, able to guide jumbo jets through perilous skies and tiny tubes through blocked arteries. As a cardiologist and United Airlines captain, William Hamman taught doctors and pilots ways to keep hearts and planes from crashing.

He shared millions in grants, had university and hospital posts, and bragged of work for prestigious medical groups. An Associated Press story featured him leading a teamwork training session at an American College of Cardiology convention last spring.