Air travel is a pain, period
If you're traveling in the US - Domestic, International; foreigner, citizen, it doesn't matter, you are in for a painful experience. Stupid rules about shoes, liquids, nail clippers, and idiotic questions:
"Has your luggage ever been out of your possession?" Yes, just now when you made me put it on a conveyor belt to be X-rayed, Genius.
"Are you carrying any weapons, or something that can be used as a weapon?"
In the right hands, anything, even a sheet of paper, *can* be used as a weapon, Nimrod. Haven't you even seen MacGyver, or a Jackie Chan movie? So the correct answer to the question is "Of course." And that's not to mention all the aircraft parts at hand - ever been smacked upside the head with a seatbelt buckle?
If someone wanted to kill or injure other passengers, all the TSA morons in existence couldn't stop it, no matter what screening they did.