correspondent bruce harrison told us more. bruce: things are moving so quickly, it is really hard to keep up with all the developments. today, we just heard from officials in seoul that president moon jae-in and like to attend the summit hihimself,f talks go well between the u.s. and north korerea. they're seeing how does play out. the u.s. has a team at the border now, led d by a man named ambassador to the phphilippines.s. before he took that post, he served extensively in the u.s. state department regarding enter koreanan affairs, korean affairs in general. he is widely considerered to be onone of the state depararent'ss top experts in that field. in 2005, or at leastst under the bush administration, he was a key playayer in nuclear negotiatations at the time. ultimately, those talks did not convince north korea to abandon its weapons program, and that brbrings us to today, when we he another round of presidential administration's buying -- admi nistrations vying for the samee goal. thee talk tuesday w will focus n the summi

here is bruce harrison in seoul. bruce: president moon korea, where he has high approval ratings for his diplomacy with north korea. he is in washington, and they are not as happy with him at the moment. there are suggestions that he may have overstayed -- overstated assurances that north korea would be willing to give up nuclear weapons. on the other hand, perhaps president trump simply misread the situation, he was too cocksure, and ignored skepticism that north korea would do this. presidenent moon has t to convie trump toto go forward w with ths summit. president moon has staked his presidency on this diplomatic plan. number one, , a meeting between nortrth and south h setting thee thehefor a meeting between u.s. and north korea, , the firt time the leaders of those countries would meet. tosident moon perhaps needs sit down with trump and maybe readjust his expectations, because all alalong the u.s. administratition has beeeen sayg verifiable denuclearization. now it appeaears less likely because of what north kor

bruce harrison reporting from seoul.rosecutors investigating a downed flight over ukraine say missiles used to bring down that plane came from russian armed forces. the malaysian airlines flight was brought down over ukraine in 2014 on its way from amsterdam to kuala lumpur. all 298 passengers and crew, most of them dutch, were killed. the investigation commission has analyzed all of the images of the missile from the 17th of july, 20 14, and established it had certain characteristics. these allow the commission to create a footprint. after a lot of work with other missiles, we have concluded that the missile came from the 53rd missile portrayed based in -- missile brigade based in russia. russia has always denied involvement in the incident, putting the blame instead on kiev. to get the latest on what the prosecutors had to stay, let's go live to stephanie vanderburgh in the hague. to the investigators have any specific suspects in mind? stephanie: they are being very precise about it. they don't say the russian militar