The Libyan militant accused of helping coordinate the 2012 Benghazi attacks has pleaded not guilty to conspiracy. Ahmed Abu Khattala, who was flown to Washington, DC, was being held at the US District Courthouse there, the New York Times reports. In court, he wore a two-piece black track suit and kept his hands behind his back. He looked impassively at the judge for most of a 10-minute court hearing. US special forces captured him in Libya two weeks ago, marking the first breakthrough in the investigation of the Benghazi attacks. He had been undergoing questioning aboard a Navy ship that brought him to the United States. (More Ahmed Abu Khattalah stories.)