That assumption has been translated into laws and programs that have created new institutional interests in maintaining the status quo. Not the least of those interests is that Iran has long served as the primary rationale for the U.S. military presence and role in the Middle East, as well as for the sale of weapons and anti-missile systems to regional allies.
Iran has also long become a major focus -- if not the leading target -- of CIA and National Security Agency spying efforts worldwide. Obama's apparent view that Saudi Arabia can serve as a partial substitute for direct U.S. military operations in order to combat terrorism and Iranian influence in the region has added yet another obstacle to the realignment of U.S. regional policy.
Six months after the nuclear agreement was first signed in July 2015, Obama has shown no willingness to break openly with the Saudis on Syria or Yemen, despite the recklessness of Saudi policies in those countries.
The recent moves by the Saudis to raise tensions with Iran suggest that the Saudis are still hoping to force the Obama administration into a more aggressive anti-Iran posture in the region. That may well fail, and in the long run the U.S. may well adopt a more even-handed posture toward Iran to deal with the chaos that has descended on the region.
If and when that happens, the nuclear agreement will not have loomed very large in the decision.
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