The TSA's new scanners

Penn Jillette of Penn&Teller had a nice confrontation with the TSA

http://www.pennandteller.com/03/coolstuf...alvip.html

haha good read.


But i dont see what the big deal is. Is every person boarding a plane going to go through this scanner or is the scanner a step after the metal detector goes off? It seems to me like the average person who has nothing to hide should never even need to be scanned by this machine and it should be no big deal.