U.S. official warns China against nuclear, missile trade with N. Korea 21.01.2016 06:21 Yonhap News Agency (en) SEOUL, Jan. 21 (Yonhap) -- A senior U.S. diplomat warned China on Thursday against selling nuclear and missile-related technology to North Korea, ratcheting up pressure on Beijing in the wake of Pyongyang's fourth nuclear test. Thomas Countryman, a
