Besides being racist this is kind of dumb. If you’re going to bring down the plane you’re defo not going to look like someone who gets randomly selected 100% of the time. Even the 9/11 terrorists knew this and shaved their beard instead of looking like the fundamentalists scumbags they were.
Just because it’s dumb doesn’t mean people won’t do it.
I mean TSA, but it also applies to other groups too.