FILE - In this Thursday, July 7, 2011 file photo Bosnian worker Ermin Nuhanovic carries bags of body remains during a process of reassociation and identification of human remains, exhumed from mass graves and identified by DNA, in the identification center in Tuzla, 140 kms north from Sarajevo,Bosnia. A Bosnia-based commission that has pioneered a DNA-based system to find and identify the remains of people missing in conflicts and natural disasters will become a permanent global body helping track down millions of missing around the world, officials said Thursday, Dec. 4, 2014. (AP Photo/Amel Emric, File)