Although the current idiots in power in DC are doing a really fine job of resetting the nation into a position that terrorists can easily use to hit us once again, the bearded cowards from sandland will never be able to use airliners to do so... and here's why...
The reason why they were able to successfully use airline aircraft to accomplish the 9-11-2001 attacks is very simple and now very gone. What facilitated the plot hatched by the bastards that day was the worst kept secret in airline security called "The Common Strategy." This was a plan that was taught in EVERY airline training course- including the private ones where some of these creeps paid to learn how to fly 767s- and it could be effectively titled "How to get hijacked." It was cooked up by the FBI, the FAA and some professional terrorist negotiators. The rules for the flight crew were very simple- in flight: do whatever the hijackers tell you, on the ground: make the aircraft into a building. Additionally, there was a saying: "If release is offered- take it, if escape is possible- make it." In short- you were supposed to be 100% non-confrontational and stall for time, because time was the FBI's best weapon. "Wait 'em out" is what we were instructed to do. "Don't be a hero." was stressed. That even went as far as surrendering control of the aircraft if the terrorist said that they were going to fly it... which is exactly what all four flight crews did on 9/11- because that is exactly what they were trained, many times, to do. We were told to keep this plan a "secret"- yet thousands of crews were given this secret in training- from the new-hire regional flight attendant, to the sliver-haired major airline captain who'd seen it once a year for their whole career. Needless to say- it wasn't that much of a "secret." Somewhere along his path of hate Mohamed Atta or someone near him learned of the "Common Strategy" and used it to put together the perverted plan that killed 2,974 Americans.
The moment that we saw the second aircraft strike the second tower, every airline pilot instantly realized that "The Common Strategy" had been used against us in an unthinkable manner. At that same instant, we all said to ourselves, "SCREW THAT, no one's getting my aircraft ever again." Screw the negotiators, screw the experts, screw their training- I'll get on the F&%king P.A. and tell the passengers to fight back with their lives and I'll pull so many G's that those bastards will find their teeth in the carpet- and if they do get through the door they'll be wearing my crash ax between their eyes.
Thus- a repeat of the 9/11 attack can never take place again using airliners from civilized countries. All the TSA passenger searches and assorted nonsense is little more than show. The real security is in the cockpit, and it has been that way since the moment the second aircraft hit the World Trade Center. This all means that the bearded bastards from sandland will have to hit us in another way- and at this moment they're plotting on how to do it.