Photos: Egypt unstable after days of protest

An Egyptian protester throws a tear gas canister toward riot police during clashes outside the Egyptian presidential palace on Friday, February 1, in Cairo. Egypt has been embroiled in violence since last week, the two-year anniversary of an uprising that led to the ouster of then-President Hosni Mubarak.

An Egyptian protester throws a tear gas canister toward riot police during clashes outside the Egyptian presidential palace on Friday, February 1, in Cairo. Egypt has been embroiled in violence since last week, the two-year anniversary of an uprising that led to the ouster of then-President Hosni Mubarak.