Beginning in 2007, full-body scanners were installed at the nation's airports to address concerns that terrorists could smuggle explosives hidden in their clothing — or, in one infamous case, their underwear — that wouldn't be picked up by standard metal detectors.
The scanners produced a fairly detailed image of a traveler's body, which was viewed on monitors by TSA screeners in a separate room.
Now, the Transportation Security Administration is rolling out new technology that produces a less revealing image of travelers. The new technology uses the same scanners, but with upgraded software. Call them scanners 2.0.
Monday, July 25, 2011