A four-minute analysis — filmed last Wednesday but released for today’s high-level talks in Geneva — explaining why the US and not Iran holds the keys to a deal over Tehran’s nuclear program:

The question is: does the US finally begin to negotiate?

First, the US will have to recognize that Tehran has a right to a nuclear program. Anything less, and the talks are a non-starter.

Second, the US will have to make a commitment that serious lifting of sanctions, not a token step, is on the table.

It is Washington that has the possibility of advancing these talks. But it is Washington that also can ensure the talks are only a formality and run into stalemate.