Shoe Screener System: "The Department of Homeland Security Science and Technology Directorate (DHS/S&T) is interested in identifying potential vendors with prototype Shoe Screener systems for Government-conducted laboratory assessment. TSA is interested in establishing a Qualified Products Listing (QPL) as a method to regulate equipment used in Registered Traveler (RT) services provided by a commercial security provider to supplement and/or expedite passenger processing through airport checkpoints...The system should be capable of detecting explosives, either concealed in shoes or traces of explosives on passenger shoes or legs to a height of 18 inches from the floor without the passenger having to remove their shoes." [via Wired]