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In this , Tuesday, April 1, 2014 photo made available Thursday, April 3, 2014, a crewman on a Royal New Zealand Air Force P-3 Orion Rescue Flight 795 searches for debris from the missing Malaysia Airlines Flight MH370, in southern Indian Ocean, 1,500 kilometers northwest of Perth, Australia. The focus of the search has changed repeatedly in the nearly four weeks since the air traffic controllers lost contact with the Boeing 777 between Malaysia and Vietnam over the South China Sea. It began in the South China Sea, then shifted toward the Malacca Strait to the west, where Malaysian officials eventually confirmed that military radar had detected the plane. (AP Photo/AAP Image, Kim Christian, POOL)