Why aren't we using the easiest method first - PROFILE!! We subject average folks to the most demeaning searches because we don't want to appear to be discriminating.
The PC insanity has to stop. Call a spade a spade and search the folks who fit the profile. Frisk a couple of random folks but I'm pretty sure you can skip the little kids and the grandparents. The hot mothers of the kids however, are a different story!