How close are we to a nuclear Iran? What does it mean for American foreign policy? How did we get to this point? And what do we do now? In Unthinkable, Kenneth Pollack, a former CIA analyst with twenty-five years of experience working on the Middle East, explores America’s intractable problem with Iran, Tehran’s pursuit of a nuclear weapons capability, and the pro­longed clash that led us to this point. Pollack lays out key solutions to the Iran nuclear ques­tion, explaining and assessing the options for American policymakers: • Redoubling our efforts at a carrot-and-stick approach that combines negotiations and sanctions • Aiding the Iranian opposition to bring about a popular form of regime change • An Israeli military strike • The American military option • Containing a nuclear Iran Insightful, powerful, and balanced in its approach, Unthinkable is one of the most thought­ful and important books on foreign policy in the past decade.