Why Malaysia Airlines jet might have disappeared

Malaysian Prime Ministe
Malaysian Prime Minister Najib Razak (C) arrives to meet family members of missing passengers at the reception centre at Kuala Lumpur International Airport on March 8, 2014. Rescuers from several nations mounted an air and sea search on March 8 for a Malaysia Airlines jet that has gone missing over Southeast Asia, with grave fears for the 239 people on board.