I was in the Army, back in '69 - '70, when planes were being hijacked to Cuba. I don't know how many, if any service members, were on those planes, but the thought of being hijacked to Cuba, didn't sit very well with me, especially since I traveled in my uniform, to get the military discount on the ticket. No one ever considered screening the passengers, to search for anything that could be considered a weapon.
Now, I agree that a quick search for knives, guns, blackjacks, anything that can be used as a weapon, is a good idea. But what you had to go through, Racehorse, because of appliques on your pockets, is in my mind, ridiculous. What did they think that you were going to do, hijack the plane by threatening to throw your pants at the pilot?
The same goes for e-juice and batteries. Really, how could they be used to hijack a plane. The scary part, is that this is never going to end. A hundred years from now, they will still be searching people and confiscating any little thing that they consider to be "dangerous".