One of my coworkers, who flies a lot and is by no means "conservative", was lamenting to me the other day that she's sick of being the only person at the airport every time who refuses the full body scanner. She opts out, and when they ask if she wants a private room, she always tells them "no" and says they should do their groping in front of everyone. But she says most people in line look at her like she's a weirdo when she opts out.
Like so many other invasive regs, people simply become accustomed to them. Also, as pointed out above, there is a large contingent (and I think more so in the conservative community than in what we refer to as the "nanny staters") who think all this stuff is a great idea. It's for our safety and fights terrorism!!!!!!