of kim jong-un carrying out his so far empty promises it has to begin with an accounting of his nuclear program including locations that have not been revealed and hopefully locations that we are not aware of and again that is a bare minimum to show genuine progress and to put some substance behind these empty words we have heard. >> ambassador yun, the intelligence agency thinks kim has no intention of engaging in a full denuclearization. where does that leave talks? >> we don't know. president trump and kim appear to make good contact but that's about it for now. what to me is for sure is that kim jong-un has made the decision to change the direction of his economy but as yet we don't see any evidence he's made a decision to denuclearize so we