[demosthenes the elder]

I will point out some obvious facts:
9/11
19 badguys, with boxcutters = 3000+ DEAD goodguys

there is such a thing as acceptable losses.
If I was on a plane, and it got hijacked, and I was armed...
I might die. some passengers MIGHT die. some terrorists WOULD die. and no plane would crash into a friggin skyscraper.
Is the math simple enough for you yet?

[stuartcr]

Of course there are acceptable losses, and I would hope that anyone on a plane with terrorists NOT armed with guns, would do something...not unlike those over PA. As I said, if there are no guns, which the 9/11 group did not have, no one would get shot, either intentionally, or by mistake.