VIENNA—A historic nuclear compromise within sight, American and Iranian negotiators struggled Monday to clear the final obstacles to an agreement aimed at eliminating the threat of a nuclear-armed Tehran. Weary diplomats expected to push past their fourth missed deadline in less than two weeks.
Among the vexing questions remaining: Should Iran be allowed to begin buying and selling conventional weapons again?
As a midnight target for a deal approached, diplomats said the nuts and bolts of the written nuclear accord had been settled days ago. And Iranian President Hassan Rouhani briefly raised expectations of an imminent breakthrough by proclaiming on Twitter: “Iran Deal is the victory of diplomacy & mutual respect over the outdated paradigm of exclusion & coercion. And this is a good beginning.”





