Iraqi Sunni Muslims participate in an anti-government demonstration in Falluja, 50 km (31 miles) west of Baghdad May 3, 2013. Tens of thousands of Sunni Muslims poured onto the streets of Ramadi and Falluja in the western province of Anbar following Friday prayers, in their biggest show of strength since the outbreak of protests last year. REUTERS/Mohanned Faisal (IRAQ – Tags: RELIGION POLITICS CIVIL UNREST) – RTXZ985