In 1973, a United States Air Force officer, Major Harold Hering, asked a question that the Air Force did not want asked. Hering, a decorated Vietnam War veteran, was then in training to become a Minuteman-missile crewman. The question he asked one of his instructors was this: “How can I know that an order I receive to launch my missiles came from a sane president?”
The writer Ron Rosenbaum would later call this the “forbidden question.” Missile officers are allowed to ask certain sorts of questions—about the various fail-safe systems built to prevent the accidental launching of nuclear weapons, for instance. But the Air Force would not answer Hering’s question, and it moved to discharge him after determining that officers responsible for launching nuclear weapons did not “need to know” the answer. “I have to say I feel I do have a need to know because I am a human being,” Hering said in response.