Supporters of the deposed Egyptian president, Mohammed Morsi, carry an injured demonstrator who was shot during clashes in Ramses Square in Cairo on Friday. Dozens were killed nationwide in escalating violence. AMR ABDALLAH DALSH/Reuters /Landov hide caption

itoggle caption AMR ABDALLAH DALSH/Reuters /Landov

Supporters of the Muslim Brotherhood clash with the Egyptian security forces Wednesday in Cairo. In addition to the fighting, the interim government imposed a state of emergency. Mosaab El-Shamy/AFP/Getty Images hide caption

itoggle caption Mosaab El-Shamy/AFP/Getty Images

Egyptian employees of the Cairo Opera House and opponents of Egypt's Islamist President Mohamed Morsi hold placards during a demonstration inside the opera's compound in Cairo on May 30, following the dismissal of the head of the opera house. The firing is the latest salvo in a cultural war between artists and the ruling Muslim Brotherhood. Khaled Desouki/AFP/Getty Images hide caption

itoggle caption Khaled Desouki/AFP/Getty Images

People view Mississippi River floodwaters on Sunday, May 8, 2011, in Memphis, Tenn. Mark Humphrey/AP hide caption

itoggle caption Mark Humphrey/AP