You betcha. You would think, wouldn't you, that the airlines would be terrified of another 9/11, but apparently they aren't, otherwise they would be doing everything--especially arming their pilots--to prevent it.
Sad to say, but it could happen again, and if it does, the airline industry will be decimated. And the executives of the airlines can blame only themselves...just as they collect their huge exit bonuses and head out the door.