There is no question that profiling is going on, and to some extent it should be allowed, even if it is not the stated policy of the TSA. The real danger I foresee is that the idea of blowing up airplanes is going to spread like a cancer, and expremists of all stripes could start using the tactic. Unfortunately there are some reallly crazy people out there (take that idiot who flew all over the place with a case of TB) who may do harm.

I would think there should be some kind of psychological profiling as well....you can tell a lot by someone's body language.

I say we bite the bullet and get a database of eye scans and fingerprints for those of us who are frequent fliers and who don't want or need the hassle of removing shoes etc. we really have no privacy left anymore anyway, so whats the difference?