to richard haass, president of the council on foreign relations and the author of "the world: a brief introduction." welcome back. i want to start with the expulsion of bart gorman, the deputy chief of mission there at the u.s. embassy in moscow. the decision by the administration to tell us three weeks after the expulsion and now they're considering a response. if they're trying to de-escalate tensions should there be some reciprocity? >> it's a fair question. i never thought that removing diplomats or cutting off diplomacy was a sanctions. i don't quite understand it. so to kick out russian diplomats out of the united states, i'm not sure how it sends the message that we're interested in a diplomatic outcome. it's not that the people working in embassies are going to be that critical. it will have to take place at a higher level.