BVS
Blue Crack Supplier
The whole thing is pointless because anyone who had a bomb would not just stand in line and wait to get scanned, he'd run, hide. So if anyone is standing there waiting to go through they do not have a bomb so why humiliate them?
I know they don't want to profile anyone but it really seems ridiculous to waste so much time and money and put so many people through such trouble when they know damn well from looking at a lot of people they are not a terrorist- take an old person or a family with little kids. So what happens is that everone is inconvenienced because they do not want to offend a very small portion of the flying public.
Well obviously your first premise is wrong since terrorist have made it through previous screening tests.
And what makes you think you know what a terrorist looks like? What makes you think a terrorist can't blackmail someone in to bringing something on, or sneak something on to them?