U.S. special representative for North Korea policy Glyn Davies, left, talks with South Korea's nuclear envoy Lim Sung-nam at the Foreign Ministry in Seoul Thursday, Jan. 24, 2013. The U.N. Security Council on Tuesday unanimously approved a resolution condemning North Korea's rocket launch in December and imposing new sanctions on Pyongyang's space agency. (AP Photo/Jung Yeon-je, Pool)

Associated Press
U.S. special representative for North Korea policy Glyn Davies, left, talks with South Korea's nuclear envoy Lim Sung-nam at the Foreign Ministry in Seoul Thursday, Jan. 24, 2013. The U.N. Security Council on Tuesday unanimously approved a resolution condemning North Korea's rocket launch in December and imposing new sanctions on Pyongyang's space agency. (AP Photo/Jung Yeon-je, Pool)
U.S. special representative for North Korea policy Glyn Davies, left, talks with South Korea's nuclear envoy Lim Sung-nam at the Foreign Ministry in Seoul Thursday, Jan. 24, 2013. The U.N. Security Council on Tuesday unanimously approved a resolution condemning North Korea's rocket launch in December and imposing new sanctions on Pyongyang's space agency. (AP Photo/Jung Yeon-je, Pool)