Senior officials of South Korea and the United States discussed the situation on the Korean Peninsula, and challenges facing the global disarmament and nonproliferation regime, Seoul's foreign ministry said Wednesday. Jeong Yeon-doo, vice foreign minister for diplomatic strategy and intelligence, met with Christopher Yeaw, U.S. assistant secretary for the bureau of arms control and nonproliferation at the State Department, in New York on Tuesday (U.S. time) on the sidelines of the Nuclear Non-Pr