A general view shows the burnt facade and debris at Rabaa al-Adawiya sqaure in Cairo on August 15, 2013, following a crackdown on the protest camps of supporters of the Egypt's ousted Islamist leader Mohamed Morsi the previous day. The day's violence was Egypt's worst in decades, exceeding even that seen during the 18-day uprising that ousted president Hosni Mubarak. AFP PHOTO / MAHMOUD KHALED        (Photo credit should read MAHMOUD KHALED/AFP/Getty Images)