www.boingboing.net/2010/01/22/naked-airport-scanne.html
So the scanners dont actually catch terrorist or show up bombs.
So we now have more proof that they are there for another purpose.
We have two possibilities :
1. To create child porn for officials and government.
2. To check for people travelling who are not human ( Aliens )
So take your pick. Certainly not a good idea.