At the height of the Korean War, President Truman launched one of the most important intelligence - gathering operations in history. So valuable were the mission's findings about the North Korean-Soviet-Chinese alliance that it is no stretch to say they prevented World War III. Only one man? sworn to secrecy for a half-century?survived Operation Broken Reed. Arthur Boyd recalls his role as cryptographer on a team of Army Rangers, Navy Frogmen, Air Force officers, and CIA operatives that posed as the captured crew of a B-29 bomber in January 1952. Given cover names and cyanide caps.