Defense contractor Textron Inc. demonstrates what it calls its Common Unmanned Surface Vessel (CUSV) technology at the company's New Orleans shipyard, on April 12, 2012. Technology that sent unmanned aircraft over warzones in Iraq and Afghanistan soon could be steering unstaffed boats for such dangerous tasks as minesweeping, submarine detection, intelligence gathering and approaching hostile vessels. (Photo by AP Photo/Textron, Inc.)
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