I fly 2x per week minimum. I've been hit with this type of search 4 times since 11/11/01, 3 in the last 12 days. I've never had to actually take my socks off but I have had the shirt raised, been patted down, luggage inspected, etc. Purely random and "luck-o-the-draw" IMO (although I'm sure some "profiling" is going on). When they hit me up for an "ass-inspection" I'll fight back or cancel - heh heh.
Later,