In this Tuesday, June 4, 2013 photo, an Egyptian man prays at the Sayyeda Zeinab shrine, sister of Imam Hussein, the grandson of Islam's prophet Muhammad and one of the most believed Sh

 

              In this Tuesday, June 4, 2013 photo, an Egyptian man prays at the Sayyeda Zeinab shrine, sister of Imam Hussein, the grandson of Islam
In this Tuesday, June 4, 2013 photo, an Egyptian man prays at the Sayyeda Zeinab shrine, sister 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)