AMARAH, Iraq -- Looters ravaged a former British base Friday, a day after the camp was turned over to Iraqi troops, taking everything from doors and window frames to corrugated roofing and metal pipes, authorities said. About 1,200 British troops had been stationed at Camp Abu Naji in Amarah, 200 miles southeast of Baghdad, and the base had come under almost daily attack. The troops pulled out Thursday to redeploy along the border with Iran to crack down on weapons smuggling. Shortly after the troops pulled out, Iraqi police managed to disperse looters by firing warning shots into the air,...