Closed captioning of: World leaders meet on Iran nukes
matt, thank you. the u.s. delegation attending tomorrow's high-stakes showdown with
over that country's nuclear ambitions arrived in
overnight. nbc's chief
traveled with them. andrea, good morning to you.
reporter: good morning,
. when the u.n. delegation meets with the iranians tomorrow, they want to see concrete steps. they want to see access for u.n. inspectors to the people, to the documents, to the site itself.
has said that it is willing to let u.n. inspectors in, but they haven't said when and they haven't said how much they'll let those u.n. inspectors see. so, a senior official said to me here today in
, this is the real test of whether diplomatic engagement will work. the betting is that
will do just enough to appear conciliatory and try to divide the
, particularly dividing the u.s. from
, but not enough to really satisfy the u.s. that it's no longer cheating.
may, in fact, even offer to commit access or release of those three american hikers, but u.s. officials here in
say they want to talk about one thing -- the
were to stonewall, andrea, what leverage does the
reporter: well, it's a very tough situation because if
stonewalls, probably, then,
would stay on board and china would follow
's lead, but if they take that middle course, that really could divide the coalition. then the u.s. and europe could tighten existing unilateral sanctions, not working through the u.n., assuming that
would veto anything, and they could try to impose some other additional sanctions, but sanctions without the u.n. behind it are not as effective, and
, the military has said there really is no military option.
, thank you very much.