A friend on another board has artificial joints that are guaranteed to set off a metal detector 100% of the time. And consequently get sent for secondary screening 100% of the time she flies. In her latest trip, she was subjected to the new 'enhanced patdown', which she described as meeting any textbook definition of sexual assult any state has on the books. And she's a nice middle-aged lady not prone to exaggeration.
And despite her explanation that it was her knee replacements that were setting off the scanners, at no time was there an attempt to use a hand-held metal detector to verify the location of the metal on her, just the groping of her crotch.
Per Papa Scooterbug, she is supposed to have a special card to show the TSA that she has had surgery/artificial joints.
Of course, TSA does not really care - Papa Scooterbug wears shorts or loose pants so he can preemptively show them his giant scar, has the special card, and still gets hassled...........which is why he likes the full body scanners.
I can see the "enhanced patdowns" being used IF there is a valid suspicion that someone is hiding something THERE, but I frankly think they are stupid, cause problems, and violate people's rights.
Any female can smuggle an item in 2 places you can't reach during this groping, and any man can smuggle it in 1. Not to mention the fact that almost every padded bra sold already has "pockets" for a removable pad on the inside.
Heck, I used to sometimes use my non-padded (and rather small) bra instead of a purse in college and you couldn't see it - dorm key, cash, ID, gum, drink tickets, condoms.