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Western leaders appear positively lackadaisical about striking a deal with Iran. As the New York Times recently reported, “Mr. Obama’s aides seem content with stalemate.” If the alleged threat from Iran’s nuclear program is so urgent that the United States—or Israel—would even consider military action, why is stalemate in negotiations satisfactory? Is the administration seriously worried? After much haggling, the great powers—the so-called P5+1, the permanent five members of the UN Security Council plus Germany—will meet with Iran in Kazakhstan next week to discuss Iran’s nuclear issues. Last time the P5+1 powers talked with the Iranians, Iran was only offered access to some meager civilian-aircraft parts in exchange for them making serious concessions on their...