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CAIRO, EGYPT - FEBRUARY 11: A woman cheers in Tahrir Square after it is announced that Egyptian President Hosni Mubarak was giving up power February 11, 2011 in Cairo, Egypt. After 18 days of widespread protests, Egyptian President Hosni Mubarak, who has now left Cairo for his home in the Egyptian resort town of Sharm el-Sheik, announced that he would step down.
CAIRO, EGYPT - FEBRUARY 11: A woman cheers in Tahrir Square after it is announced that Egyptian President Hosni Mubarak was giving up power February 11, 2011 in Cairo, Egypt. After 18 days of widespread protests, Egyptian President Hosni Mubarak, who has now left Cairo for his home in the Egyptian resort town of Sharm el-Sheik, announced that he would step down.

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How Tunisia's revolution turned into Syria's civil war

When a desperate fruit seller set himself on fire in Tunisia, a regional uprising was born. CNN's Ian Lee explains.

How Tunisia's revolution turned into Syria's civil war

When a desperate fruit seller set himself on fire in Tunisia, a regional uprising was born. CNN's Ian Lee explains.