An Egyptian policeman guides his bomb-sniffing dog through the entrance of St. Mark Cathedral in Cairo, Egypt, Monday, Jan. 6, 2014 ahead of Coptic Christmas Eve mass. Egyptian authorities put up a ... more 
An Egyptian policeman guides his bomb-sniffing dog through the entrance of St. Mark Cathedral in Cairo, Egypt, Monday, Jan. 6, 2014 ahead of Coptic Christmas Eve mass. Egyptian authorities put up a heavy security cordon around the Coptic cathedral in Cairo hours before Christmas Eve mass, using bomb-sniffing dogs, metal detectors and officers. (AP Photo/Amr Nabil) less 
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Associated Press | Photo By Amr Nabil
Mon, Jan 6, 2014 4:37 PM EST