A crewman on a Royal New Zealand Air Force P-3 Orion searches for possible debris from the missing Malaysia Airlines Flight 370, in the southern Indian Ocean earlier this month. Kim Christian/AP hide caption

itoggle caption Kim Christian/AP

June 5, 2009: Relatives and friends pray for passengers of Air France Flight 447 at the Nossa Senhora do Carmo church in Rio de Janeiro. Those who lost loved ones in that flight are expressing their sympathy and concern for those waiting for word about Malaysia Airlines Flight 370. Sergio Moraes/Reuters/Landov hide caption

itoggle caption Sergio Moraes/Reuters/Landov