Turkish Prime Minister Recep Tayyip Erdogan speaks to Shiites in Istanbul on December 16, 2010 during Ashura, which commemorates the killing of Imam Hussein, a grandson of the Prophet Mohammed, by armies of the caliph Yazid in 680 AD. Tradition holds that the revered imam was decapitated and his body mutilated in the Battle of Karbala.   AFP PHOTO/MUSTAFA OZER (Photo credit should read MUSTAFA OZER/AFP/Getty Images)