Several times after going through the body scanner I've been pulled aside and searched. It was never overly aggressive and I always made sure we did it right there in front of everyone, but it's uncomfortable having a stranger run their hand up your inseam into your junk - and seems like the typical safety theater. I mean, what's the point of the scanner if they're just going to feel you up after?
And yet they can't stop nut jobs from assaulting flight attendants, trying to open the door mid flight and throwing punches in the plane. How about an @#$%& detector.