TSA Expands Use of Explosive Trace Detection Technology at Airports Nationwide
Never mind, duplicate of the handwashing thread.
More random hand swiping and checking
From -
http://www.tsa.gov/press/releases/2010/0217.shtm
Passengers can now expect to see the increased random use of ETD technology in areas where TSA currently conducts screening such as the security checkpoint, as well as in the checkpoint queue, and boarding areas. Officers may swab a piece of luggage or passengers’ hands, then use ETD technology to test for explosives. The swab is placed inside the ETD unit which analyzes the content for the presence of potential explosive residue. To ensure the health of travelers, screening swabs are disposed of after each use. Since it will be used on a random basis, passengers should not expect to see the same thing at every airport or each time they travel.