The armed pilots would still have likely been trained to cooperate with terrorists and avoid casualties. After all, it's not like the passengers themselves are unable to overpower a few boneheads with box cutters.
Al Quaeda took advantage of an operting policy (not confronting terrorists) which, up until that time, had been a logical and functional operating policy. Prior terrorists all wanted to make a statement, go to Cuba, etc.
Al Queada had one chance to exploit that operating policy and they did so. They couldn't do the same now.
Edit: Too many "they"s made sentence unclear.
Al Quaeda took advantage of an operting policy (not confronting terrorists) which, up until that time, had been a logical and functional operating policy. Prior terrorists all wanted to make a statement, go to Cuba, etc.
Al Queada had one chance to exploit that operating policy and they did so. They couldn't do the same now.
Edit: Too many "they"s made sentence unclear.