A Bosnian Muslim man mourns near the grave of his relative among the graves of Srebrenica victims at the Memorial Cemetery in Potocari, near Srebrenica, 160 kms northeast of Sarajevo, Bosnia, Wednesday, July 11, 2012. Thousands gathered in the cemetery for the mass burial of 520 bodies, marking the 17th anniversary of the Srebrenica massacre. (AP Photo/Sulejman Omerbasic)