Riot police keep watch as they hold shields during clashes with protesters in Cairo January 26, 2011.REUTERS/Goran Tomasevic
A woman opposition supporter takes shelter while providing water during rioting with pro-Mubarak demonstrators near Tahrir Square in Cairo February 3, 2011. REUTERS/Goran Tomasevic
An anti-government protester gestures during clashes with police in Cairo January 26, 2011. REUTERS/Amr Abdallah Dalsh
A protester runs next to a police vehicle after throwing a bag of trash at it during a demonstration in Cairo January 28, 2011. REUTERS/Goran Tomasevic
Anti-government protesters carry a placard and celebrate in Tahrir square in Cairo February 11, 2011. REUTERS/Yannis Behrakis
Protesters flee from tear gas fire during clashes in Cairo January 28, 2011. REUTERS/Amr Abdallah Dalsh
A man carries a picture depicting Egyptian President Hosni Mubarak as Adolf Hitler during a protest in Cairo January 31, 2011. REUTERS/Goran Tomasevic
An opposition supporter holds up a laptop showing images of celebrations in Cairo's Tahrir Square, after Egypt's President Hosni Mubarak resigned February 11, 2011. REUTERS/Dylan Martinez
Anti-government protesters sit next to a "Facebook" graffiti sign during demonstrations inside Tahrir Square in Cairo February 7, 2011. REUTERS/Dylan Martinez
Anti-government protesters in Cairo's Tahrir Square wave shoes in dismay as President Hosni Mubarak speaks to the nation February 10, 2011. REUTERS/Dylan Martinez
An anti-government protester mans an elevated defense position alongside the Egyptian Museum near Tahrir Square in Cairo February 4, 2011. REUTERS/Yannis Behrakis
Smoke billows over Cairo following clashes between protesters and police January 28, 2011. REUTERS/Yannis Behrakis
An opposition demonstrator throws a rock during rioting with pro-Mubarak supporters near Tahrir Square in Cairo February 3, 2011. REUTERS/Goran Tomasevic
Egyptian soldiers restrain a supporter of President Hosni Mubarak who tried to get to opposition lines near Tahrir Square in Cairo February 3, 2011. REUTERS/Goran Tomasevic
Riot police clash with protesters in Cairo January 26, 2011. REUTERS/Goran Tomasevic
Supporters of deposed president Hosni Mubarak react after a court sentenced him to life in prison, outside the police academy where the court is located in Cairo June 2, 2012. REUTERS/Mohammed Salem
A protester stands in front of a burning barricade during a demonstration in Cairo January 28, 2011. REUTERS/Goran Tomasevic
A protester holds an Egyptian flag as he stands in front of water canons during clashes in Cairo January 28, 2011. REUTERS/Yannis Behrakis
A man gestures as another throws a stone during clashes between pro and anti-Mubarak supporters clash at Tahrir Square in Cairo February 2, 2011. REUTERS/Goran Tomasevic
An anti-government protester prays as his comrades stand behind barbed wire in front of army tanks alongside the Egyptian Museum on the front line near Tahrir Square in Cairo February 5, 2011. REUTERS/Yannis Behrakis
An Egyptian Army officer shouts slogans as he is carried by protesters in Cairo January 29, 2011. REUTERS/Goran Tomasevic
A general view shows Tahrir Square as Egyptian riot policemen try to disperse protesters in Cairo November 20, 2011. REUTERS/Mohamed Abd El-Ghany
A girl attends Friday prayers in front of an army tank in Tahrir Square in Cairo February 18, 2011. REUTERS/Suhaib Salem
Flashback: Egypt's Arab Spring
A look back at the Egypt uprising that led to the overthrow of president Mubarak in 2011. Mubarak, the first leader to face trial after the Arab Spring protests that swept the region, was freed after six years in detention.