I cannot quite get my head around why people are even debating this issue. It's a no-brainer, would you prefer having the risk of being blown up at 38,000 feet over the atlantic in an alluminium tube, or instead letting some average joe/joanna, (who you will probably never see again in your lifetime), view an image of you which lets face it doesn't exactly appear 'clear'. This Xray screening has clearly been bought in to try and improve security and mitigate the bastards that take great joy in blowing us out of the sky, and yet there appear to be a fair few number of people who are instead worried about what they look like 'naked' - pathetic
