If those new airport X-ray scanners offend your modest sensibilities, you may not want to read this. A new terahertz remote sensor may soon be able to see through walls, packaging materials, and even clothing from thousands of feet away, identifying materials contained inside through their unique spectral signatures.
For more, see Remote Terahertz Scanners Could See What's in Your Pockets from Miles Away by Clay Dillow, July 13, 2010, at Popular Science.
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