A privacy group that wanted the Transportation Security Authority’s collection of 2,000 “see through your clothing” body scans was blocked this week by a federal court. Releasing those images could reveal the machine’s vulnerabilities, it turns out.
Source: No peeking: TSA’s naked body scan images stay secret | Ars Technica
So the machines are hideously expensive, don’t work to catch terrorists, and can save and transmit images of naked people…