I read this thread a couple of days ago (I've been so busy and mostly spend my online time lurking) and I don't see how Dekka was immature... she gave really good examples about how the TSA has screwed many people... the urine bag story was terrible, and I feel so bad for that man to have to endure that. Ugh.
I don't think the original story is considered groping, though... many adults are frisked/searched, and it is quite possible for adults to set children up with guns/drugs/etc. It's stupid, yes, but if you're checking adults then I can't see why you wouldn't check kids. I disagree with most of the TSA checks and it's one thing I hate about flying... but I like traveling too much to stop flying.