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i want to go back to different points that dennis ross made. the first is the idea of providing as part of the deterrent strategy the -- that would be quite something. it is a delivery system intended for use of nuclear weapons. it would raise a number of issues above and beyond the ability to attack a single site. you are seeing this problem emerging with other countries where and offer nuclear weapon platforms. i would note that the procurement channel i don't find it that the fact that the iranians haven't used it i don't find it to be quite such a troubling aspect. they have so many unused centrifuges that offer to keep existing level going so they goent need to go into the market place for that purpose. the reactor, they are still in the design phases. it is not a surprise that they aren't in the market looking for replacement parts. >> we have been using for conventional purposes. >> anything? >> so the last person i had on the list was talking right now. so maybe -- are you still on my list, madame? okay. >> my question is about sanction

first ill turn to dennis ross and then mark fitzpatrick. dennis has served several presidents as key negotiator for ar arab-israeli peace. he is a distinguished pelfellow washington institute. he has written several books, the last is a must-read on the relationship between successive israeli governments and american presidents with some really interesting background material that i think is quite new to most of us. mark fitzpatrick has lived for the last 10, 15 years in london. working for tstrategic studies s commentator writer on nuclear nonproliferation, but he is an american. before he went to iiss in the state department doing pretty much what he is doing now. he is now moved back to washington and is the executive director of iss america. and in that capacity, he runs the office they have here in town and they hold meetings just like this and do publications just like we do. but mark's real prominence in this town has to do with his extraordinary knowledge of the iran nuclear component, including the status of the iran nuclear deal. s

ross has more. >> reporter: the graphic pictures show what critics believe is the latest example of the long arm of vladimir putin. police surround the body of a former member of the russian parliament, dennis defecting to ukraine and publicly criticizing the russian president. just last month, voronenkov told a reporter for a tv network funded by the u.s., that he accepted his fate as a putin critic. a kremlin spokesman denies any role in the murder, but the president of ukraine is calling it russian state terrorism on orders of putin. just two days ago in moscow, another putin critic, a russian lawyer, nikolai gorokhov, was thrown out of the fourth story of his apartment building and critically injured. under the rule of russian president putin, more than a dozen critics have been targeted for assassinations. lawyers, businessmen, journalists. based on his public comments, none of it has seemed to bother president donald trump. >> putin is a killer. >> a lot of killers. we've got a lot of killers. what, you think our country is so innocent? >> reporter: russian opposition leader, boris nemtsov, told me in 2014 that critics of putin counted on the u.s. to help them stand up to the russian