secretary of state south carolina is negotiating also with iranian foreign minister moasmed javid zarif. after six months of protracted negotiations that have been going on for months and months, both sides have made it clear that their negotiations are involved strictly to the iran nuclear file. but people talking and living in the same hotel other issues are also being discussed in the sidelines. a break in the talks foreign minister zarif went for a walk on the lake frond. he confirmed to me that yemen has been discussed. >> any two diplomats sitting in a place will discuss that issue. doesn't mean we negotiated about it. our negotiations are confined to the nuclear. >> any deal here could have wider implications. so far the only person to state that publicly, is the u.n. policy chief fredericka margarini. >> certainly as far as the western powers are concerned and iran is concerned what it doesn't do is change attitudes behaviors and suspicions particularly in the middle east. both israel and most arab governments are very suspicious of iran. and they're not very keen on this deal.