Literally none of that is true, the shoe thing was added years after 9/11 because of the shoe bomber and it wasn't even in and the shoe bomb didn't even work
I once accidentally got through TSA with a fucking knife in my carry-on bag. That's despite those assholes putting me through a "random" screening.
I only realized I had it because they caught it on the flight back and I was surprised so I just told them to toss it, but I was shocked they didn't catch it the first time. Totally useless fucking fascists.
I was questioned by German airport security when they X-rayed my backpack that had metal reinforcing struts sewn into some of the seams. (They were very chill and were probably messing with me by asking me a beer stein was called like they couldn't remember the word "stein".)
In fairness, who knows what those homeland security goons might have done? Could easily have hijacked the plane and flown it into a migrant concentration camp. I'll chalk this up as "3 terrorists caught, 1 terror attack stopped".