Here's an easy way, though no one in the media has brought it up:
So we are now searching for explosives that people may have put in their underwear. What is the next logical step for a terrorist? Take the same amount of explosive and put it in the vagina or anus. These will NOT be detected by our current groping policies. From my understanding, they won't be detected by the body scans either. (Presumably, higher doses of radiation could detect this.)
So we are investing hundreds of millions of dollars, exposing people to radiation and groping more than 60,000 law abiding citizens a day to enact measures that could be easily defeated with no expense and not much thought.
I'd like to think that Americans would never tolerate TSA agents sticking their fingers into women's vaginas, but I never thought we'd tolerate what people seem to be tolerating today.
The truth of the matter is that the Cinnabon at the airport is a bigger threat to your safety and well being than a terrorist.