The "porno scanners"? Give me a break. You are so scared that somebody is going to see your naked body? Big whoop. What are you ashamed of? This is getting ridiculous.
While I personally do think that the TSA is ridiculously ineffective and this is security theater, I don't get why most Americans are so ashamed of their bodies. It is ... unnatural for lack of a better words. It reminds me of the idiocy surrounding Janet Jackson's nipple. The whole world was laughing. Duh, she is a woman - she has nipples. My mother has them too.
I remember in Europe little girls and boys as old as 5-6 years old used to run completely naked on the beach. Of course in the USA that would be considered "perversion", I guess. The perversion is in fact the exact opposite.