I stopped flying after on my way home in Heathrow I was given a very public and incredibly embarrassing patdown. I took the train from providence to Pittsburgh in April; 13 hours but you can bet your ass it was better than flying and getting "randomly selected". The fact that a five dollar bill is now a security event is embarrassing to our country.
And don't give me this "you don't know how many terrorism events they stopped" like these agencies who can't tie their own shoes are suddenly going to go shy and hide all these miraculous plots they stopped. They are very public when they foil a "plot" they mostly hatched by convincing mentally ill people to commit attacks they otherwise would have no ability to carry out.
https://theintercept.com/2015/07/13/another-terror-arrest-another-mentally-ill-man-armed-fbi/
My wife was a block from the Boston marathon bombs in a retail store; the FBI had visited those dudes houses over a year before; Russian security forces tipped us off. Still doesn't change the fact that if those dudes were just tracked, or if a $100 security lock was installed on every cockpit, there'd be no terrorism. Instead we do this awful kabuki theater at the airports pretending we are safer.