The world's foremost expert on Middle Eastern relations examines Iran's current nuclear potential and charts America's future course of action. 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...