POPULAR MECHANICS: Technical Q&A on Full-body Scanners.

Related: Joe Pappalardo: Three Things No One Wants To Think About. “Every security precaution since 9/11 has been countered by a change in terrorists’ tactics. . . . During World War II, the Germans defeated the Maginot Line by bypassing it. Right now, as the TSA fortifies our airports, it’s hard not to think that terrorists are switching to other methods or targets. If this is the case, the body-scan debate could be moot.”