Egyptian policemen stand guard outside at a polling station during the second day of voting on a new constitution on January 15, 2014 in the Nasr City district of the Egyptian capital, Cairo. Egyptians resumed voting in the constitutional referendum, with turnout expected to hold the key to a likely presidential bid by army chief Abdel Fattah al-Sisi after clashes killed nine the previous day. AFP PHOTO / VIRGINIE NGUYEN HOANG