Little more than a year ago, the Nonproliferation Policy Education Center (NPEC) completed its initial analysis of Iran's nuclear program, Checking Iran's Nuclear Ambitions. Since then, Tehran's nuclear activities and public diplomacy have only affirmed what this analysis first suggested: Iran is not about to give up its effort to make nuclear fuel and, thereby, come within days of acquiring a nuclear bomb. Iran's continued pursuit of uranium enrichment and plutonium recycling puts a premium on asking what a more confident nuclear-ready Iran might confront us with and what we might do now to hedge against these threats.