The Search for Flight MH370

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A woman walks past graffiti of Flight MH370 in Kuala Lumpur, April 15, 2014.

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Crew aboard the Australian Defence Vessel Ocean Shield move the U.S. Navy's Bluefin-21 autonomous underwater vehicle into position in the southern Indian Ocean to look for Flight MH370, April 14, 2014. (US NAVY)

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Co-pilot and Squadron Leader Brett McKenzie looks from the cockpit of a Royal New Zealand Air Force aircraft as they fly over the southern Indian Ocean, to continue the search for Flight MH370, April 13, 2014.

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The Royal Australian Navy ship HMAS Perth is guided into position by a Royal New Zealand Air Force aircraft as the search continues for Flight MH370, April 13, 2014.