simple solution to hijacking problem

[1965GTO]

MR 50 I believe you are incorrect. If pilots are ordered not to open the door for any reason during flight they will not. If you don't trust them then the doors can be made where they will not open. Or as someone else said seal it completely and put the doors on the outside. It my be hindsight but you can be sure now that it has been done, someone will do it again ,if you don't change something. And yes they can build a seperation between the cockpit and passenger compartment that is not going to be able to be kicked in. Or even shot through.