stephen cohen is a russian scholar and a professor are at nyu. reeland, a writer at reuters. stephen sestanovich has worked on soviet and russian issues at and government and think tanks. steve, as the dispassionate think tanker here really from the point of geo politics, why is this problem getting worse not better. >> putin has no reason to stop that has persuaded him. he made a decision last year that his success in crimea was so incredible, created such a nationalist sensation in russia that he was going to try for more. putin has only benefited from it at home except for the blowback the diplomatic isolation, the economic costs. he faces a difficult situation because in many ways this policy has played out very badly for him internationally. domestically, not so much. >> stephen, when it all happened, you did predict putin, this is core to putin and to russia. you see it, i assume, differently in the sense you see this as essentially a kind of core russian national security interest? >> the other steve and i fundamentally disagree. first of a