Staying in New York,… the top national security advisors of South Korea and the United States -- Chung Eui-yong and Robert O’Brien -- discussed ways to follow-up on Monday's summit between Presidents Moon and Trump.<br /> Meeting for the first time since O'Brien was appointed U.S. National Security Advisor last week, they also agreed to meet again in the near future in Seoul or Washington. <br />President Trump replaced John Bolton with O'Brien due to his differences with Bolton on multiple fronts,… including on how to denuclearize North Korea. <br />
