Since forward-moving talks in Geneva four weeks ago, nuclear talks withIran have seriously deteriorated. WorldFocus interviews U.S.-Iranrelations expert Trita Parsi who says that changing dynamics in Tehranare to blame for the current situation and that there is little outsidefactors will be able to contribute to quell the issue. Parsi says it isnot the deal itself that is the problem, it is the fissures in Iranthat are impeding progress.