Oceanographer 'astounded' by latest twist

A member of the Indonesian Air Force at Medan city military base inspects the Indonesian military search operation for the missing Malaysian Airlines flight MH370 on March 12, 2014 in the area of Malacca Strait, a sea passageway between Indonesia (seen left of the map) and Malaysia (seen top left of the map). Malaysia faced a storm of criticism on March 12 over contradictions and information gaps in the hunt for a missing airliner with 239 people on board, as the search zone dramatically veered far from the intended flight path.       AFP PHOTO / ATAR        (Photo credit should read ATAR/AFP/Getty Images)

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    Oceanographer 'astounded' by latest twist

Becky Anderson speaks to David Gallo, an oceanographer who helped locate the Titanic, about how to locate a plane at sea.