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"In its deepest dive yet, the U.S. Navy's robotic submarine Bluefin 21 is scouring the floor of the Indian Ocean for missing Flight 370. Charlie Rose reports."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.cbsnews.com/videos/malaysia-airlines-flight-370-sub-makes-fifth-attempt-to-find-missing-airliner/>