Now, from Homeland Security News Wire comes this:
20 October 2011
Detroit's Metro International Airport will soon become the second test ground for the Transportation Security Administration’s (TSA) "chat down" program, as it is called by critics; under the program, which was tested earlier this year at Boston's Logan Airport, TSA security screeners ascertain whether a passenger is a threat or not based on their reactions to several interview questions.
The interviews are similar to what individuals encounter at a U.S. Customs checkpoint but are focused on terrorism.
Kawika Riley, a TSA spokesman, said the chat down program can help improve airport security.“TSA has long recognized the value of a layered, threat-based approach to transportation security and the need to focus more of our resources on people who potentially pose a threat to aviation safety, in addition to the system’s current focus on high-risk items,” Riley said....
There is more to this interesting article here.
In a related column: Iris recognition system deployed at Gatwick Airport