Updated at 7:48 p.m. EDT, Sept. 15, 2010 In what may turn out to be the first controversial event of Operation New Dawn, Iraqi and U.S. troops conducted a joint raid that left nearly a dozen civilians dead or wounded. The raid is already stirring up criticism and will likely lead to a drawn-out investigation by the U.S. military. This is the second raid this week in which Americans participated alongside Iraqis despite the withdrawal of U.S. combat troops last month. Overall, at least 24 Iraqis were killed and 29 were wounded there and across Iraq. Two other attacks against U.S. targets left no casualties.