Officials in Tehran increasingly sense that it may be easier to get the bomb through an agreement than by pursuing it outside the parameters of a deal, Ray Takeyh writes Friday, June 15, in The Washington Post. But for this strategy to succeed, Iran has to get the right kind of an accord, one in which it trades size for transparency. Namely, the deal must allow Iran to construct an elaborate nuclear infrastructure in exchange for conceding to intrusive inspections. With the next round of talks looming, the challenge at hand is not just to negotiate an agreement with a disciplined adversary but to avoid the pitfalls of a flawed deal.  The United States and its allies must impose serious curbs on Iran’s nuclear ambitions. Iran cannot maintain enriched uranium and must export all of its accumulated stock for reprocessing abroad. There must similarly be significant restriction on not just the number but also the type of centrifuges that Iran operates.