Journalist Ron Rosenbaum has pointed out that the SIOP is entirely concerned with the identity of the commanding officer and the authenticity of the order, and there are no safeguards to verify that the person issuing the order is actually sane. "The president has supreme authority to decide whether to use America's nuclear weapons. Period. Full stop," says the Arms Control Association's Kingston Reif. A president could only be stopped by mutiny, he explained, and more than one person would have to disobey the president's orders. Notably, Major Harold Hering was eventually forced out of the Air Force for asking during his missile training course how he could know that an order to launch his missiles was "lawful," that it came from a sane president, one who wasn't "imbalance" or "berserk."