I think there has been a lot of rubbish in the press over this...Only one operator in a separate room will view these images. That person will be changed regularly for obvious reasons. There won't be loads of giggling individuals there for the laugh. With the thousands of passengers passing through the scanners can anyone really believe they are going to be interested in anything other than contra indications??? It seems people are OK with someone invading their personal space and touching them, but, when it comes to a blurry image...Well!
I hate all of these security systems, but if it speeds up the damn process, get them on the staff access points.