Violent protests in Egypt

CAIRO, EGYPT - JANUARY 25: An Egyptian protester runs with a live tear gas canister during clashes with riot police in Tahrir Square on January 25, in Cairo, Egypt. Thousands of protesters converged on the capital's iconic Tahrir Square on Friday to mark the second anniversary of the overthrow of former President Hosni Mubarak's regime. (Photo by Ed Giles/Getty Images).

CAIRO, EGYPT - JANUARY 25: An Egyptian protester runs with a live tear gas canister during clashes with riot police in Tahrir Square on January 25, in Cairo, Egypt. Thousands of protesters converged on the capital's iconic Tahrir Square on Friday to mark the second anniversary of the overthrow of former President Hosni Mubarak's regime. (Photo by Ed Giles/Getty Images).