An Egyptian protester wearing a Guy Fawkes mask runs during clashes with security at the entrance of Tahrir Square, the focal point of the Egyptian revolution, in Cairo, Egypt, Tuesday, March 5, 2013. Police briefly cleared protesters from Tahrir Square, once the epicenter of protests against Mubarak. The demonstrators, who have held a sit-in there for the past three months, returned soon after, burning two police vehicles on Sunday, March 3, 2013. (AP Photo/Amr Nabil), APTOPIX