I fail to understand how we're now comparing profiling with body scanners. They're not the same equipment to do the same thing. Body scanners are just an extension of the regular X-ray machines. And they do nothing.
Let me tell you something. X-ray machines and body scanners are all operated by people. If the people are not well trained, or they're tired, or they don't have time to look at the screen because they are engaged in talking to other people, what good does it do? It's not 100% effective anyway.
I am under strict constraints of security, but I'm telling you again, we have compromised the body scanners too many times with explosives that could bring down a 747--I know how to do it, and I could explain it to people with security clearance--but you will never, ever see it in the scanner like that.
My idea, again, is use the current equipment--the manned portals with the metal detectors, the X-ray machines--and put on some new devices that have been developed, that sniff explosives, drugs, and biohazards. Go with that instead of looking at the naked-person image that people won't look at after awhile and anything can be smuggled through.