Open this photo in gallery: Bosnian Muslim men say prayer during a mass funeral at the Srebrenica Genocide Memorial in Potocari, Bosnia and Herzegovina, on July 11.Amel Emric/Reuters Thousands of people from Bosnia and abroad gathered in Srebrenica on Thursday for the annual ritual of commemorating the 1995 genocide which Serb officials continue to deny, fueling ethnic tensions and deep divisions within the war-ravaged state. Twenty-nine years after they were murdered in Europe’s only acknowledged genocide since the Holocaust, the bodies of 13 men and one teenage boy were laid to rest Thursday at a vast and ever-expanding memorial cemetery...