Iraqi protesters set fire to the entrance of a shrine in the southern holy city of Najaf on Saturday and security forces fired tear gas to disperse them, police and a demonstrator at the scene said, risking more bloodshed after a rare day of calm.  The demonstrator sent a video to Reuters of a doorway to the Hakim shrine blazing as protesters cheered and filmed it on their mobile phones. Reuters could not immediately verify the footage. The incident took place during one of the bloodiest weeks of Iraq’s anti-government unrest, which erupted last month. On Friday, Prime Minister Adel Abdul Mahdi promised to quit to try to stem the violence and public anger. Demonstrations continued elsewhere including the southern city of Nassiriya […]