Kerry Zarif

The two diplomats have boosted communication to unprecedented levels since the 1979 revolution -- but they won't be around forever.
Since this new budding relationship with Iran has not been institutionalized, what will be left of it when the Obama administration leaves office? The challenge is to ensure that these channels of communication are not limited to the personal rapport that has developed between Kerry and Zarif, but will survive into succeeding administrations.
Washington and its allies had hoped this week's Vienna talks would be the culmination of months of difficult diplomacy between