Having just done a lot of airporting, and removed my non-metalic sneakers to get through the security theater at National, I'm pleased to learn that there is a limit to the amount of nudity that people will tolerate in the name of security that and that people in the US are resisting the airport equivalent of x-ray specs. (spotted via W. David Stephenson)
I actually had a great picture produced by the promoters of a very similar device that I wanted to publish in my Death of Privacy? article, but they refused to give me permission to use it, and even took it off line shortly after I enquired about it.