There is nothing surprising about the interim deal with Iran except that it was signed. It is true that one side or the other might have gained a little more had it held out a bit longer, but the benefits would have been slight. For the West, the advantages of the arrangement are obvious: Iran will be a bit further away from gaining the capability to produce a bomb, it will find it harder to cheat in the face of increased inspections, and it will gain some limited and temporary sanctions relief. In addition, each side will have more reason to trust the other.
The objections of Israeli Prime Minister Benjamin Netanyahu and others are really less to the interim agreement than to the ultimate deal that is most likely to result. In terms of the nuclear program, any long-term agreement will look quite a bit like the current one. Although the West will not formally recognize Iran’s “right to enrich,” it will acknowledge its enrichment program, albeit with a number of restrictions. The details have yet to be negotiated, but limits would likely be placed on the number and type of centrifuges Iran could deploy, the level to which it could enrich uranium (to five if not 3.5 percent), and the size of the stockpile it could retain (probably about the same as now). Controls would be placed on Iran’s Arak reactor, perhaps even changing it from a heavy-water unit to a more proliferation-resistant light-water one. Inspections would be ramped up in order to give the world confidence that Iran is not enriching uranium at secret sites, and there would have to be interviews with members of the Iranian unit working on warhead design, including Mohsen Fakhrizadeh.
To be sure, success is not guaranteed, especially because of domestic politics
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