Security forces set fire to anti-government protest tents in the country’s south early Saturday and re-opened key public squares in Baghdad that had been occupied by demonstrators for months. The crackdown came hours after a powerful Shiite cleric dealt the protest movement a blow by withdrawing his support, prompting his followers to pack up and leave the demonstration encampments. At least eight people were wounded when security forces fired tear gas in Baghdad’s central Khilani Square as clearance operations were underway, medical and security officials said.