"If there is not a sustained cessation of violence, full freedom of movement for U.N. personnel and rapid, meaningful progress on all other aspects of the six-point plan, then we must all conclude this mission has run its course, " Rice said.

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Currently he also speaks at the U.N. for the 120 member Non-Aligned Movement, which Iran is chairing from 2012-2015.

FORBES: Meet Iran's Ambassador to the UN

Despite these recent developments, it is encouraging that Israel has made previous commitments to peace as confirmed by the Camp David Accords, the withdrawal of its forces from the Sinai, the more recent movement of settlers from Gaza, and its official endorsement of pertinent U.N. resolutions establishing its legal borders.

NPR: Jimmy Carter on Conflict in the Middle East