Protesters hold up a sign during a demonstration in Zabadani, near Damascus April 22, 2011. Syrian security forces shot dead dozens of protesters on Friday, rights activists said, the bloodiest day in a month of escalating demonstrations against the rule of President Bashar al-Assad. Protests swept the country of 20 million people, from the Mediterranean city of Banias to the eastern towns of Deir al-Zor and Qamishli. The sign reads, "Not Salafism nor Brotherhood, my religion is Freedom". REUTERS/Handout (SYRIA - Tags: POLITICS CIVIL UNREST) FOR EDITORIAL USE ONLY. NOT FOR SALE FOR MARKETING OR ADVERTISING CAMPAIGNS. THIS IMAGE HAS BEEN SUPPLIED BY A THIRD PARTY. IT IS DISTRIBUTED, EXACTLY AS RECEIVED BY REUTERS, AS A SERVICE TO CLIENTS