In this Thursday, Dec. 13, 2012 photo, Egyptian Christians gather for a prayer rally ahead of the constitutional referendum at Samaan el-Kharaz church in Cairo, Egypt. Egypt's churches called on Christians to gather and hold prayers for Egypt from 9:00 pm local time until midnight at the church in the city's Mokattam district. (AP Photo/Roger Anis, El Shorouk) EGYPT OUT
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