SEAL Warrior: Death in the Dark: Vietnam 1968--1972During the Vietnam era, many of the U. S. Navy SEALs (SEa, Air, Land commandos) never filed for a Purple Heart unless they were severely wounded. Thomas H. Keith, Master Chief, SEAL Team 2, is living proof. He carries a piece of shrapnel behind one lung, a reminder of the day he called in 40 mm mortar fire on the enemy that was trying to catch up to his crew as the crew hauled ass out of the bush. Not only did he never report it, it was never removed