A female supporter of the Muslim Brotherhood and Egypt's ousted president Mohamed Morsi, wearing a gas mask, gestures during clashes with police in Cairo on August 14, 2013, as security forces backed by bulldozers moved in on two huge pro-Morsi protest camps, launching a long-threatened crackdown that left dozens dead. The clearance operation began shortly after dawn when security forces surrounded the sprawling Rabaa al-Adawiya camp in east Cairo and a similar one at Al-Nahda square, in the centre of the capital.  AFP PHOTO / MOSAAB EL-SHAMY        (Photo credit should read MOSAAB EL-SHAMY/AFP/Getty Images)