Why the Iran deal’s second anniversary may be even more important than the first (Kenneth M. Pollack, Brookings)

At the time that the Joint Comprehensive Plan of Action (JCPOA) with Iran was being debated here in Washington, I felt that the terms of the deal were far less consequential than how the United States responded to Iranian regional behavior after a deal was signed. I see the events of the past 12 months as largely having borne out that analysis. While both sides have accused the other of "cheating" on the deal in both letter and spirit, it has so far largely held and neither Tehran nor Washington (nor any of the other signatories) have shown a determination to abrogate the deal or flagrantly circumvent its terms. However, as many of my colleagues have noted, the real frictions have arisen from the U.S. geostrategic responset o the deal.

http://www.brookings.edu/blogs/markaz/posts/2016/07/14-iran-deal-anniversary-pollack