Description: [caption id="" align="aligncenter" width="400" caption=""Backscatter" x-ray scan, courtesy of Flickr user publik16, Creative Commons: Attribution 2.0."][/caption] Following the Christmas Day capture of a passenger, dubbed “The Underwear Bomber,” who attempted to blow up an American airliner, controversy swirls around the use and efficacy of full body scanners and the fate of