Like the rest of us, airport security screeners like to think they can read body language. The Transportation Security Administration has spent some $1 billion training thousands of “behavior detection officers” to look for facial expressions and other nonverbal clues that would identify terrorists.Why are we paying those people? What service are they performing while violating the 4th Amendment hundreds of times a day--and with impunity?
But critics say there’s no evidence that these efforts have stopped a single terrorist or accomplished much beyond inconveniencing tens of thousands of passengers a year. The T.S.A. seems to have fallen for a classic form of self-deception: the belief that you can read liars’ minds by watching their bodies.
Most people think liars give themselves away by averting their eyes or making nervous gestures, and many law-enforcement officers have been trained to look for specific tics, like gazing upward in a certain manner. But in scientific experiments, people do a lousy job of spotting liars. Law-enforcement officers and other presumed experts are not consistently better at it than ordinary people even though they’re more confident in their abilities...
The T.S.A. program was reviewed last year by the federal government’s Government Accountability Office, which recommended cutting funds for it because there was no proof of its effectiveness. That recommendation was based on the meager results of the program as well as a survey of the scientific literature by the psychologists Charles F. Bond Jr. and Bella M. DePaulo, who analyzed more than 200 studies....
Monday, March 24, 2014
Geniuses At The TSA
Can the TSA-holes do anything right?