Reply #6: Indication that the usual response was interfered with:

[Mist]

Regarding the failure of NORAD to intercept the four hijacked planes on 9/11, Col. Bowman said, “I'm an old interceptor pilot. I know the drill. I've done it. I know how long it takes. I know the rules. … Critics of the government story on 9/11 have said: ‘Well, they knew about this, and they did nothing’. That's not true. If our government had done nothing that day and let normal procedure be followed, those planes, wherever they were, would have been intercepted, the Twin Towers would still be standing and thousands of dead Americans would still be alive.”

MIHOP.