In the aftermath of Vietnam, the US was reluctant to get involved militarily (at least overtly.) That seemed to last until Kuwait. The success there seemed to embolden US hawks, and there were a couple long-term excursions after that.
The current dude apparently fell for the ever-present hawks, without the savy to ask the right questions. His total capitulation, after demonstrating the ineffectiveness of the military, while at the same time proving the effectiveness of asymmetric warfare, will (perhaps, hopefully) be an educational moment for future presidents.
Certainly it is a valuable educational moment to other defendents. You don't need to fight back. You just need to affect something else the world cares about. And, it turns out, global shipping is especially vulnerable.
> The Middle East should not be the punching bag for America to take out its "crazy" feelings (where "craziness" appears to be a polite way of saying "bloodlust").
Yes, this I agree with. The Iraq War in particular was clearly not justified.
How many plane hijackings have occurred in other countries, which don't have the TSA?
9/11 itself was. The general view before 9/11 was that a hijacking is an inconvenience: you get an unexpected detour via Cuba and have a nice story to tell at the next holiday party, but that's about it.
The second it became clear that the plane itself was the weapon and that there was a very real possibility you wouldn't walk away from it, hijacking became virtually impossible as every. single. passenger. would now be very much motivated to fight in order to prevent a certain death. United 93 already made this clear: they found out about what happened to the other planes, so they tried taking back the airplane. They didn't get it back, but the terrorist attack itself definitely failed.
Even without any kind of TSA future hijackings would almost certainly be closer to United 93, as American Airlines Flight 63 showed in practice.