US Attorney General to Face Lawmakers on Gun Sting - U.S. Attorney General Eric Holder will testify in December to a congressional panel about a botched operation to track guns smuggled from the United States to Mexican drug cartels, officials said Friday. Holder has agreed go before the House Judiciary Committee on Dec. 8 which could lead to a fierce volley of accusations by congressional Republicans who have harshly questioned what the attorney general knew and when. The debacle stemmed from an attempt to crack down on guns being smuggled to the violent drug cartels in Mexico, but agents failed to track the guns after their initial purchase.