At the point where Pyongyang says we are interested in seeing relief from sanctions and improved relations and we are prepared to have a serious conversation about denuclearization, I think it's fair to say that we'll be right there at the table, we haven't even gotten to that point yet, because there has been no indication on the part of the North Koreans as there was with the Iranians that they could foresee a future in which they did not possess or were not pursuing nuclear weapons.