FILE - In this March 30, 2014, photo, a man and a girl place signs on strings during a ceremony for the passengers on the missing Malaysia Airlines Flight 370 in Kuala Lumpur, Malaysia. Malaysian Prime Minister Najib Razak announced on Thursday, Aug. 6, 2015, that a wing piece that washed up on Reunion Island last week is from the missing Malaysia Airlines Flight 370. However, French, U.S. and Australian authorities stopped short of full confirmation, frustrating relatives with mixed messages. (AP Photo/Aaron Favila, File)