smitty777 writes "Highlighting another unique way to use cutting edge DNA technology, the U.S. Department of Defense has a new weapon in its efforts to combat counterfeit parts: plant DNA. This article at Wired discusses how plant DNA can be used to make an almost unique code (1 in 1 trillion) for parts identification. A graphic shows some of the ways this could be done: bolts with DNA-marked coating, invisible bar codes, and fluorescing inks are some of the possible applications. In a similar but unrelated project, World Micro has a different solution to detect counterfeit items in the military that have been 'blacktopped,' where items have been re-surfaced to allow remarking."
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