measures that can demonstrate to his people that he is the strong negotiator that he promises them that he is. >> according to south korean media, south korean president moon jae-in in helsinki hinted there could be momentum building for a third summit between trump and kim. implying there was die hog between the two sides. the american side is ready to engage and president trump believes kim will stick to his promise to denuclearize. veteran diplomats say if there's a third summit, there will be enormous pressure on both men to deliver something. >> the question about a third summit post-hanoi, are they prepared for a summit? they saw what happened when they got together prematurely in hanoi. they didn't have the details ironed out, and it collapsed. and i don't think it was good for either of them. >> wednesday marked one year since the first summit in singapore between the two