South Korea's top nuclear envoy is scheduled to fly to the U.S. in the coming hours for North Korea-related talks with his American counterpart.<br />Seoul's foreign ministry says Lee Do-hoon, special representative for Korean Peninsula peace and security affairs,... will leave for Washington on Tuesday.<br />Lee and U.S. Special Representative for North Korea Stephen Biegun will address the Atlantic Council-East Asia Foundation Strategic Dialogue on Wednesday,... marking the first time that the two envoys will speak on the same stage.<br />Lee's visit comes amid an impasse in the denuclearization negotiations between Pyeongyang and Washington.<br />
