Search For Missing Flight MH370 Shifts To Underwater Mission

PERTH, AUSTRALIA - APRIL 16: A People's Liberation Army Air Force Illyushin Il-76 on final approach to Perth International airport having just completed a search mission trying to locate missing Malaysia Airways Flight MH370 on April 16, 2014 in Perth, Australia. Twenty-six nations have been involved in the search for Malaysia Airlines Flight MH370 since it disappeared more than a month ago. The Malaysian Airways aircraft went missing on 8th March 2014 whilst on a flight between Kuala Lumpur and Beijing. (Photo by Richard Wainwright - Pool/Getty Images)