A Coptic Christian woman grieves during the funeral for victims of Saturday's clashes between Muslims and Christians in Cairo May 8, 2011. Egypt's military rulers vowed on Sunday to crack down on religious violence after 12 people died in clashes in a Cairo suburb sparked by unconfirmed suspicions that Christians had abducted a woman who converted to Islam. REUTERS/Asmaa Waguih (EGYPT - Tags: RELIGION CIVIL UNREST)