From Yahoo News 3/04/08
http://news.yahoo.com/s/ap/20080404/...ehavior_agents

The agency's efforts drew attention this week when screeners trained in behavior detection in Orlando arrested an Army veteran after he tried to check luggage containing pipe bomb-making materials onto a flight to Jamaica.

But that collar was something of a rarity. In the four years since the program was launched, the TSA has yet to encounter any would-be suicide bombers. The most common catches have been people carrying fake IDs.

Of the more than 104,000 air travelers who were plucked out of security lines and subjected to a more intense level of screening because of something suspicious in their demeanor, fewer than 700 were ultimately arrested, officials said.

Bolding mine.
Our Founding Father must be turning in their graves.