Marines take "Big Dog" robot for a test walk

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Marines take "Big Dog" robot for a test walk

Marines take "Big Dog" robot for a test walk
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Marines take "Big Dog" robot for a test walk

CBSTV Videos 0:55 mins

CBS News RAW: U.S. Marines gave a robot called LS3, or "Big Dog," a test run through the woods of Fort Myer, Va.

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