Police guard the leaders of different Islamist groups during a protest rally after Friday prayers near the U.S embassy in Dhaka September 28, 2012. Police stopped an attempt by Muslims to besiege the U.S embassy in Dhaka as thousands of protesters gathered near the embassy to demonstrate against an anti-Islam film made in the U.S. and cartoons mocking Prophet Mohammad in a French magazine, local media reported. REUTERS/Andrew Biraj (BANGLADESH - Tags: CIVIL UNREST RELIGION)