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Pentagon Tests Out 'Sea Hunter,' 132-Foot Robot Ship

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The Pentagon on Monday showed off the world's largest unmanned surface vessel, a self-driving 132- foot ship able to travel up to 10,000 nautical miles on its own to hunt for stealthy submarines and underwater mines. The military's research arm, the Defense Advanced Research Projects Agency, or DARPA, in conjunction with the Navy will be testing the ship off the...