Malaysian Prime Minister Najib Razak (L) and Australian Prime Minister Tony Abbott shake hands before the start of their talks on the continuing search for Malaysia Airlines flight MH370 at the Royal Australian Air Force (RAAF) Base Pearce located near Perth April 3, 2014. Malaysian police have ruled out involvement of any passengers in the disappearance of a missing jetliner, while Australian officials warned bad weather and a lack of reliable information were impeding efforts to find wreckage from the plane. REUTERS/Paul Kane/Pool (AUSTRALIA - Tags: TRANSPORT MILITARY DISASTER POLITICS)