The U.S. Department of Homeland Security (DHS) Science and Technology (S&T Directorate) released a test report on a new portable explosives trace detector, the XD-2i. Testing was conducted at the DHS S&T Transportation Security Lab (TSL) and the final test report (DHS/STD/TSL-08/02) is available to recognized government and military agencies.The Transportation Security Laboratory is a Departm