understand not to ease sanctions against iraq the outlook on the upcoming negotiations we have referred to edina incendiary and have spent on iran's nuclear program and nonproliferation chisholm research associate at a london think tank the international institute for strategic studies. and she's joining us from calvert a thank you very much miss this fun caring for joining us in which explain what the stumbling blocks are to achieving an agreement. and it seems that there are two main stumbling blocks here one is the one that you mentioned the iraq plutonium within eighteen weeks as they would like iran to stop construction on and the second seems to be around enrichment capability the question is and how much enrichment in iran continue to do. and of course what's a kind of enrichment is that he obviously it's not allowed to do twenty pissed and so on can we continue to accept iran's enrichment at a lower level. and what will we do with the rain in ron's stockpiles of uranium at the moment. what do think that negotiators to agree to add to it. there are two things that the iranians are going t