It would only work in a movie script. Its justnotgoing to slow down any group who wishes to get in a cockpit bad enough. Stronger doors is the answer as far as that goes. . .I think pax play the most important role in this sort of threat. If called on to act in some situation, no matter how frightening it may appear,PAX need to protect the control of the airplane. If you have 6 terrorists on a plane, then you need AT LEAST 1 big guy to tackle each of those M'F's into powder, and it need not matter who you step on to do it! There would be no time to pick volunteers my friends. Its a horrible thought to imagine being in that situation--thats why you cant think!thats the reality, I think we can all agree.