Let us not forget that Obama advocates a change in the accepted US policy with Iran. He advocates direct negotiations without any preconditions. McCain rejects the idea as do many Democrats.
What does Rice do? She takes the sting out of Obama's discredited notion by suggesting that it is time the US entrust a new group of American diplomats to Iran's tender mercies. Just an idea, her people say. Nothing imminent. It is designed to help Iranians get American visas. Why? To make sure they do not get annoyed at the clerics for blocking their access to American visas. A more self defeating policy has yet to get invented.