It always seemed likely to me that the aircraft crashed because either the crew or the pax fought back,and tragically were unable to regain control. Their story took a back seat to other horrors unfolding - naturally enough. But I hope that one day we will hear from the CVR/FDR just how incredibly brave they were,how much more destruction they prevented,and how nearly they made it. God bless every victim on those four flights,but particularly the ones who fought back.