By Fareed Zakaria
So what explains the fevered rhetoric and opposition to the Iran nuclear deal? I think the fear is less of this deal than of what it might bring in its wake. Many imagine that this is the start of a rapprochement between the U.S. and Iran, which would fundamentally change the geopolitical landscape. It could place the U.S. on the side of the Shi'ite powers, Iran and Iraq, in the growing sectarian divide in the region. It could alter the balance of power in the world of oil–Iran's reserves are second only to Saudi Arabia's in the region.
Iran's foes should relax. This is an important agreement, but it is an interim deal on Iran's nuclear program. It is not even a final deal, which will be much harder to achieve. And it is not the dawn of a historic new alliance. Washington remains staunchly opposed to Iran on many issues, from Tehran's antagonism toward Israel to its support for Hizballah to its funding of Iraqi militias. The Islamic Republic, for its part, remains devoted to a certain level of anti-Americanism as a founding principle of its existence. The two countries are still fundamentally at odds.