Concern Gathering News Today

>> what is so interesting about this is that usually trump is all talk and not substance, but on north korea there is substance. and he backs it up with talk. >> dana: although he walked away and came home. maybe we will hear more. >> i do not think diplomacy is over. >> dana: a long way to go with diplomacy. it is not seamless. ian bremmer, thank you. concern gathering for the conference, the big buzz, live in the middle of the action. michael cohen hinting that special counsel robert mueller m...