Has anyone seen any real studies on amount of dose involved in these type of devices? I personally don't have much faith in boilerplate statements about it being "minimal" or on other side "cancer causing". I do admit more than a bit of concern with even a small dose each spread over really large population but I haven't seen any real data.
We all get on average about 20 mrem/month from naturally occurring background radiation.
Flying cross-country for four hours at 35,000 feet gives you about 4 mrem/flight.
The TSA scanner is "reported" to give the unlucky passenger a dose of less than 4 mrem (i.e., "less than the airline flight").
I don't think there's much to see here. We all get radiation every day. It rips through DNA. People get cancer. Was it caused by transuranics in concrete, background from space, occupational dose at work, etc? Who knows.
Meanwhile, I personally would rather not find out at 35,000 feet that a woman on the plane has plastic explosives in her 44D size bra.
Welcome to the 21st century. Buckle up...it's likely to be a bumpy ride.