FILE - In this April 8, 2011, file photo, morgue employees take a body, found in a mass grave, from a refrigerated truck into the local morgue in Matamoros, northern Mexico. It was announced on Wednesday, May 13, 2015, that the governments of Mexico and Ecuador are in talks to subscribe an agreement that will allow to identify dozens of Ecuadorean migrants gone missing in Mexico. (AP Photo/Alexandre Meneghini, File)