Tensions escalate in Egypt
An anti-Mursi protester holds empty tear gas canisters that were shot by the riot police during a protest at Tahrir Square in Cairo November 27, 2012. Opponents of President Mohamed Mursi clashed with Egyptian police on Tuesday as thousands of protesters stepped up pressure on the Islamist to scrap a decree they say threatens the nation with a new era of autocracy. REUTERS/Mohamed Abd El Ghany (EGYPT - Tags: CIVIL UNREST POLITICS)