Somebody correct me if I am wrong here but aren't there also legal issues with how passengers are selected for "additional screening"? I think that part of the issue is that other people like the eighty year old grandma have to be selected to avoid even the appearance of "profiling" or somebody is getting sued.

As for Schmedlap, he is a former military officer and veteran of the War on Terror. He is therefore clearly a threat because he is a current or future member of a right-wing militia. The fact that he is in law school just proves that he has nefarious intent.

SFC W