murderer there is no technological panacea. the double reinforced bullet proof doors were designed to stop a 9/11 style attack again. it was designed to stop hi jackers coming forward. since they were strengthenned, in some instances, the reinforced doors have enabled threats to passenger planes because they emanated not from the passenger compartment but from the forward side of that cockpit door. but before we ever had the reinforced doors, before we had the post 9/11 standards, we still had flesh and blood malfunctions before. we still had pilots as the prop. we still had pilot suicide/homicide. pilot suicide/homicide that they