[wcbtinman]

Your assumption is based on the premise that there would only be one (or a very small number) of passengers armed on any given flight.

If law abiding passengers are allowed to carry, I would bet that about a fourth of the passengers would be armed. It would take a small army of terrorists to defeat that many armed opponents, whom the terrorists can't readily identify or locate specifically.

Even if I'm the only one, I like my chances better armed than a helpless victim. In fact, given today's circumstances, I would fight with whatever is at hand rather than just meekly submit to being flown into a building...no matter the odds.

[herewego]

hey bro- you won't be flown into a building, you will be shot down killing all onboard because you aren't allowed to defend yourself.
Guvmint knows best - you would be shot down by a sidewinder missle with a nine pound High Explosive charge because if you are armed, you may hurt yourself.