North Korea seems to have suspended the state-sponsored drug trade last year but continues to trade in counterfeit dollar bills and cigarettes, the U.S. State Department claims. The annual International Narcotics Control Strategy Report released by the department on Monday said, "Hard-to-detect fake US$100 notes made only by North Korea turned up in 2008 and 2009 in San Francisco and the South Korean city of Busan, although it was unclear how long the notes had been in circulation," AFP reported.