topic there. it looks like the iranian delegation who are supposed to be heading there haven t been given visas and iran s president, hassan rouhani, says he may not show up at all. the u.n. general assembly happening here in new york city next week. thank you, ali. i want to bring in ambassador wendy sherman, former undersecretary of state for political affairs, now at harvard s kennedy school, also an msnbc global after first contributor. ambassador, iran has denied this we saw the evidence there from saudi arabia i know you ve been following the story closely. what s your assessment is there any reason to believe that iran is not behind the attack over the weekend? well, there certainly are lots of indications that iran was behind this attack, but we find ourselves in a very difficult place for a lot of reasons. given the assassination of jam ma am khashoggi and saudi