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February 4: Opposition supporters rally after Friday prayers in Tahrir Square in Cairo. Tens of thousands of Egyptians prayed for an immediate end to President Hosni Mubarak's 30-year rule, hoping a million more would join them in what they called the "Da

A wounded anti-government protestor is tended during clashes in Cairo. Gangs of thugs supporting President Hosni Mubarak attacked reporters, foreigners, and human rights workers and the army rounded up foreign journalists on Thursday. (Sebastian Scheiner/

February 2: An egyptian cries in front of an army tank in Tahrir Square. (Tara Todras-Whitehill/AP)

February 2: Effigies of Egyptian President Hosni Mubarak can be seen hanging from traffic lights, as Egyptian anti-government protesters gathered in Tahrir Square. (Lefteris Pitarakis/AP)

February 3: A pro-Mubarak supporter apprehended by opposition demonstrators is led away during rioting. (Suhaib Salem/Reuters)

President Barack Obama is briefed on the events in Egypt during a meeting with his national security team in the Situation Room of the White House. (Official White House Photo by Pete Souza)

An Egyptian mother hugs her child as she watches some thousands of Egyptian protesters gather in Tahrir Square. (Amr Nabil/AP)

Wounded Egyptian anti government protesters sitin Cairo's main square, Egypt, Egypt, Thursday, Feb. 3, 2011. New clashes are heating up and shots are being fired in the air around Cairo's central Tahrir Square as anti-government protesters push back regi

Egyptian Nobel Peace laureate and democracy advocate Mohamed ElBaradei addresses the crowd. (Khalil Hamra/AP)

Egyptians crowed to buy bread before the start of the evening curfew on Monday. (Amr Nabil/AP)

February 3: Pro-Mubarak supporters are detained by anti-government demonstators at an underground metro station after being rounded up during clashes. (Amr Abdallah Dalsh/Reuters)

February 3: Opposition supporters throw rocks during rioting with pro-Mubarak supporters. (Goran Tomasevic/Reuters)

Anti-government protesters take part in Friday prayers at Tahrir Square. (Amr Abdallah Dalsh/AP)