doubts persist about whether the regime is permitted to giving up nuclear weapons. >> we are speaking loud. i think we can have a very good summit. i think we'll have a very tremendous summit. we want denuclearization. >> trump spent the weekend tweeting he realized without nuclear weapons his country could fast become one of the greatest economic powers any where in the world but also lowering expectations about what might be adhooefed in the second summit. >> what is going to happen i can't tell you. i think eventually it would. i don't want to rush anybody. i don't want testing. as long as there's no testing we are happy. >> despite the rosie outlook they say they are concerned he might con seed too much to kim in vietnam. so far north korea has taken no known concrete steps since the last summit. intelligence officials have concluded they are unlikely to