A woman reacts at the site of a car bomb attack in Baghdad’s Sadr City September 30, 2013. REUTERS/Wissm al-Okili

A federal policeman stands guard at the scene of a car bomb attack in the Shiite stronghold of Sadr City, Baghdad, Iraq, Tuesday, March 19, 2013. Insurgents unleashed deadly attacks Tuesday against Shiite areas in Baghdad, killing and wounding scores of people, police said. (AP Photo/ Karim Kadim)