In this Thursday, June 6, 2013 photo, a man prays at the shrine of Imam Hussein, the grandson of Islam's prophet Muhammad and one of the most believed Shiite saints in Cairo, Egypt. Hat

 

              In this Thursday, June 6, 2013 photo, a man prays at the shrine of Imam Hussein, the grandson of Islam
In this Thursday, June 6, 2013 photo, a man prays at the shrine of Imam Hussein, the grandson of Islam's prophet Muhammad and one of the most believed Shiite saints in Cairo, Egypt. Hatreds between Shiites and Sunnis are now more virulent than ever in the Arab world because of Syria's brutal civil war. Hard-line clerics and politicians on both sides have added fuel, depicting the fight as essentially a war of survival for their sect. (AP Photo/Hassan Ammar)