Baghdad suffered a string of bomb and small arms attacks today, killing at least 30 people and wounding 88 others, not including the bombers. Many of the victims were police personnel, who were the targets of the two most significant attacks. The violence also appeared focused on Shi’ite neighborhoods. There were no immediate claims of responsibility, but two months ago al-Qaeda in Iraq, which is predominantly Sunni, vowed to carry out a spree that would total 100 attacks.