This article suggests that maybe what they should do is collect all sorts of information on passengers--itinerary, traveling partners, travel history, etc--and do one hour interrogations and searches on "suspicious passengers."

I can understand the objections to the body scanners and to the pat downs on children. But on adults, they are reasonable and proper. I think that what I actually experienced--it was about the same as going to the doctor and being asked to cough--was in no way a "sexual assault" or some of the other more hyperbolic language we have seen on the Internet. Further, I think they had proper procedures for handling my ostomy device in place.

This really is not all that objectionable. Is some poor TSA agent who pats down 75 people today really going to remember you? Probably not.

But if they start examining who you are flying with and conducting interrogations, you can bet that the government will have computerized records of things like marital affairs, close friendships, your favorite snack food, and prescriptions you need. The current system allows everybody to forget and forgive. Computers never forget.

http://mobile.politico.com/iphone/#_storyPage