"In recent years, the TSA has also expanded the scope of the program. Originally intended to look only for suspected terrorists, the program now also seeks to ferret out possible criminals in airports." [italics mine]
New indicators and tactics of who to pull from the herd, including TSA agents "casually" striking up conversations with passengers who appear suspicious. One of the indicators of suspicious behavior:
"Arrogant complaining about airport security"..."Very arrogant and expresses contempt against airport passenger procedures."
More money will be spent on TSA's Behavior Detection Program:
Currently, some 3,000 uniformed behavior detection officers are deployed at about 175 airports. President Obama is calling for an additional 175 such officers in his 2012 budget proposal, and the TSA is expected to spend a total of $1.2 billion on the program over the next five years.