Interestingly enough, I don't blame the agents so much as the agency. Trust me, they don't want to touch your tender bits any more than you want them touched. Personally I don't mind being nekkid scanned(I've already been seen nekkid on the intarwebz). But the idea of a child getting either nekkid scans or felt up disgusts me to no end. Quite frankly I think that the new scans and pat downs go way too far.
"I would rather be exposed to the inconveniences attending too much liberty than to those attending too small a degree of it." Thomas Jefferson