Iraqi security forces raid protest camps after Sadr supporters withdraw

Iraqi security forces fired bullets and tear gas on Saturday in raids on protest camps in Baghdad and southern cities, killing four people and wounding dozens more, police and medical sources said.The new push to end the sit-in protests and restore order came hours after populist cleric Moqtada al-Sadr, who has millions of supporters in Baghdad and the south, said he would end his involvement in anti-government unrest.Sadr's supporters, who had bolstered the protesters and sometimes helped shiel