CB - I guess you are right about the title, it was along time ago when I read it. The point is that is was in print before 911.
Re your 2nd para.
The main question on the thread is guns on the flight deck or not??
What happens after the terrorists have control is another matter entirely.
And I hope to hell that an a/c is not shot down in the European part of the West for not 'complying with ATC'.
There could be many genuine reasons for that.