The Justice Department’s inspector general has issued a long-anticipated report faulting top federal officials over the controversial gun-sting operation known as “Fast and Furious” while exonerating Attorney General Eric Holder. The operation saw U.S. agents allowing the sale of thousands of guns to middlemen for Mexican drug cartels in an attempt to gain access to senior-level figures within Mexico’s criminal organizations. The nearly 500-page report, issued Wednesday, accuses federal prosecutors and agents from the Bureau of Alcohol, Tobacco and Firearms of allowing the botched sting to continue through a “series of misguided strategies, tactics, errors in judgment and management failures.” Holder has faced a number of Republican attacks over the program, culminating in a contempt vote by the House earlier this year. While the report exonerates Holder, it condemns Assistant Attorney General Lanny Breuer and an aide who promptly resigned on Wednesday. More than a dozen officials are singled out in the report for possible discipline.