Afghan drug kingpin Haji Juma Khan (see July 2000) is arrested and taken into US custody. Although his role in the illegal drug trade is known to US officials, he is let go. A European counterterrorism expert says, “At the time, the Americans were only interested in catching bin Laden and Mullah Omar.” Another major kingpin is arrested and released around this time as well (see Late 2001). After being released, Khan reestablishes a smuggling network that greatly benefits the Taliban and al-Qaeda. For instance, in May 2004, a tip off will reveal that Khan is employing a fleet of cargo ships to move Afghan heroin out of Pakistan to the Middle East. Some return trips bring back plastic explosives, antitank mines, and other weapons to be used against US troops in Afghanistan. In 2004, Assistant Secretary of State Bobby Charles says of Khan, “He’s obviously very tightly tied to the Taliban.… There are central linkages among Khan, Mullah Omar, and bin Laden.” [Time, 8/2/2004] In 2006, a report by the research arm of Congress will label Khan as one of three prominent drug kingpins with ties to the Taliban and al-Qaeda, but he apparently has not yet been put on the official US list of wanted drug figures. [Congressional Research Service, 1/25/2006]