actally it wouldn't be that hard for the people to take the airplane. sombody probably heard what was going to be done with this plane and they wern't bargianing chips, they were on a missile. and they wern't going to let this happen
think about it, your on a flight and a few people stand up with a knives and say "we are highjacking this flight, please remain calm"
you either
A, sit back and enjoy the ride into a building
B, use cellfone and dial 911, and then go collectively jump them