When it comes to naked scanner, a lot of attention is given to the privacy issue. People also discuss the amounts of radioation the scanners emit, and official sources tell us it is no more than what you would be exposed to in 2 minutes on a plane. While that's true enough, this all fails to address the real issue, which is that these Teraherz scanners have been found to unzip DNA, which can damage genes ability to express proteins properly, which is linked to a number of problems including bipolar disorder, schizophrenia, and autism . 1st article about scanners casesblog.blogspot.com/2009/12/what-is-radiation-exposure-from-full.html 2nd article- Teraherz www.sciencedaily.com/releases/2009/12/091207123803.htm 3rd article: Teraherz unzips DNA www.technologyreview.com/blog/arxiv/24331/ Gene expression profile distinctions in children with autism (and they admit it's most likely from environmental damage or a genetic susceptability coupled with an environmental trigger) www.universityofcalifornia.edu/news/article/17200