“And the next guy will have a pound of it up the rump through security.”
I’m not sure, but I think those full-body x-ray thingies can pick up items secreted “up the rump”, etc.
If there’s an x-ray thing in my security line I always use that line; it saves a lot of time since I’m always screened. (I think Tampa was the last place I used one.) Even with this in place, it doesn’t prevent the bad guys from bringing benign components in carry-ons and assembling later on.
Only one answer: Profiling. Contract with Israel.