NSA
COMMUNICATIONS IN A FLASH
DO~~rnv~~~~~~! by NS.A. on 12-01-2011. Transparency Case# 6385JUNCLASSIFIEDCommunications in a FlaslzIt is the stuff of innumerable cavalry movies-blue-shirted troopers with mirrors reflecting sunlightin dots and dashes to flash messages over the long distances of the American West, calling for help in atense situation or promising rescue to beleaguered patrols.In addition to tales generated in movie and novels, the story of mirror signalling has been distortedby misinformation or legend...
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Internal Periodicals & Publications
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Internal Periodicals & Publications
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