A protester holds the Egyptian national flag as army soldiers stand guard near the presidential palace in Cairo, Egypt, Sunday, Dec. 9, 2012. Egypt's liberal opposition called for more protests Sunday. (AP Photo/Hassan Ammar)

Photo by: Hassan Ammar

A protester holds the Egyptian national flag as army soldiers stand guard near the presidential palace in Cairo, Egypt, Sunday, Dec. 9, 2012. Egypt's liberal opposition called for more protests Sunday. (AP Photo/Hassan Ammar)