Personally, I will never ever go through one of these scanners. I don't think they are a health risk or anything; it's a matter of principle and they are known to be ineffective anyway. If some poor schmuck wants to pad me down, so be it.

(btw, I am German and have received the most thorough pat down, ever, in Germany)

I think a crucial observation here is: How many terrorist has the TSA stopped? ... Not a single one. All this effort, the lines, the money; and not a single catch.