A protester part of the Black Bloc, holds the Egyptian national flag during clashes with riot police near Tahrir Square, Cairo, Egypt, Monday, Jan. 28, 2013. An unpredictable new element has entered ... more 
A protester part of the Black Bloc, holds the Egyptian national flag during clashes with riot police near Tahrir Square, Cairo, Egypt, Monday, Jan. 28, 2013. An unpredictable new element has entered Egypt’s wave of political unrest, a mysterious group of black-masked young men calling themselves the Black Bloc. They present themselves as the defenders of protesters against the rule of President Mohammed Morsi, but Islamists have used them to depict the opposition as a violent force wrecking the nation. (AP Photo/Khalil Hamra) less 
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Associated Press | Photo By Khalil Hamra
Mon, Jan 28, 2013 3:47 PM EST