Enlarge Photo

Photo by: Lefteris Pitarakis

Egyptian riot police officers stand in front of protesters performing Friday prayers in Cairo Friday, Jan. 28, 2011. Tens of thousands of anti-government protesters poured into the streets of Egypt Friday, stoning and confronting police who fired back with rubber bullets and tear gas in the most violent and chaotic scenes yet in the challenge to President Hosni Mubarak's 30-year rule. (AP Photo/Lefteris Pitarakis)

Happening Now