AT SEA - APRIL 17:  In this handout image provided by Commonwealth of Australia, Department of Defence, The Phoenix Autonomous Underwater Vehicle (AUV) Artemis just before it is craned over the side of Australian Defence Vessel Ocean Shield in the search for missing Malaysia Airlines flight MH 370 on April 17, 2014. 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 LSIS Bradley Darvill/Australia Department of Defence via Getty Images)