Anti-government protesters join in traditional Muslim Friday prayers in Tahrir Square in downtown Cairo, Egypt, Friday, Feb. 11, 2011. Hours later, the government announced that President Hosni Mubarak has stepped down. (AP Photo/Tara Todras-Whitehill)

Photo by: Tara Todras-Whitehill

Anti-government protesters join in traditional Muslim Friday prayers in Tahrir Square in downtown Cairo, Egypt, Friday, Feb. 11, 2011. Hours later, the government announced that President Hosni Mubarak has stepped down. (AP Photo/Tara Todras-Whitehill)