Seems to me, a lot of people are missing the most important aspect of this event. We have an airplane flying for 80 plus minutes, unable to respond to repeated contact attempts by ATC and by Company, and nothing being done by any security measure to actually confirm what the problem might very well be. The center can prevent traffic conflict, but the center cannot prevent the airplane from going anywhere the guys driving care to take it, or point it. Unacceptable, on all vectors. Heads should roll, and not only thoses flying the aiirplane. Indeed, who was paying attention to who and what was flying.