On July 25, 1969, 22-year-old helicopter crew chief John Fogle was torn open by AK-47 rounds — as the OH-6 in which he manned a machine gun flew low over a North Vietnamese Army encampment. Frontline Army surgeons saved his life — and his limbs. In 2019, for CBS Eye on Veterans, Chas reported on how the recent digitizing of a Vietnam War surgical registry helped John, nearly a half century later, find those doctors and keep a promise he had made to say thanks.