The blast doors are never to be left open if one of the crew members inside is asleep as was the case in both these instances out of concern for the trouble an intruder could cause, including the compromising of secret launch codes.
Transgressions such as this are rarely revealed publicly. But officials with direct knowledge of Air Force intercontinental ballistic missile operations told The Associated Press that such violations have occurred, undetected, more times than in the cases of the two launch crew commanders and two deputy commanders who were given administrative punishments this year.
The willingness of some launch officers to leave the blast door open at times reflects a mindset far removed from Cold War days when the US lived in fear of a nuclear strike by the Soviet Union. It was that fear that provided the original rationale for placing ICBMs in reinforced underground silos and the launch control officers in buried capsules - so that in the event of an attack the officers might survive to launch a counterattack.
The crews who operate the missiles are still expected to follow rules without fail, including the prohibition against having the blast door open when only one crew member is awake. The officers, known as missileers, are custodians of keys that could launch nuclear hell. The warheads on the business ends of their missiles are capable of a nuclear yield many times that of the US atomic bombs dropped on Japan in 1945.