PERTH, AUSTRALIA - MARCH 31:  Australian Prime Minister Tony Abbott listens to a question from a reporter during a press conference at RAAF base Pearce on March 31, 2014 in Perth, Australia. The search continues off the Western Australian coast for Malaysia Airlines flight MH370 that vanished on March 8 with 239 passengers and crew on board. The flight is suspected to have crashed into the southern Indian Ocean with no survivors. (Photo by Paul Kane-Pool/Getty Images)