Peter Macdiarmid / Getty Images
Riot police fire water cannons at protesters attempting to cross the Kasr Al Nile Bridge, Jan. 28 in downtown Cairo, Egypt. Thousands of police are on the streets of the capital and hundreds of arrests have been made in an attempt to quell anti-government demonstrations.
Khaled Desouki / AFP - Getty Images
An Egyptian demonstrator confronts riot police during demonstrations in Cairo on Friday.