The Pentagon is issuing TDS Ranger handhelds to troops in Afghanistan this month. These handhelds, with specialized software and hardware, will be used as mobile lie detectors in the field. Known by the acronym PCASS, Preliminary Credibility Assessment Screening System, the device uses the TDS Ranger with three wires that connect

 

to sensors attached to the hand in order to "root out potential terrorists." The person being screened is asked a series of questions, the answers are then inputted into the device and a result is produced; "red" means that the person is lying, "green" indicates the truth and "yellow" if the program can not decide.
To read the full article, visit www.msnbc.msn.com. They also have a link to a video of PCASS in action.