Remember when Department of Homeland Security (DHS) Secretary Janet Napolitano claimed back in 2010 that the US Transportation Security Administration's (TSA) naked body scanners had been proven safe by research conducted by the National Institute of Standards and Technology (NIST) (http://epic.org/privacy/backscatter...)? A Freedom of Information Act (FOIA) request recently brought to light internal emails that were sent by NIST to DHS that basically decry Napolitano's false assertion that NIST had verified the safety of the naked body scanners.
Amid the string of emails discussing the matter, an undisclosed sender explains that NIST was "a little concerned" over Napolitano's public reassurances that TSA's naked body scanners are safe. After all, NIST does not test products, and it never tested the naked body scanners in the first place. Napolitano apparently took the individual machine dose measurements that NIST had gathered and twisted them to say what she wanted them to say, which was that the machines are safe.