Book excerpt: Are we on the cusp of détente with Iran? Conventional wisdom certainly seems to believe so. Since the start of diplomacy between the Islamic Republic and the P5+1 powers (the United States, France, England, Russia, China, Germany) in November 2013, hopes have been running high for a historic reconciliation of Iran’s clerical regime with the West. Yet there is ample reason for skepticism that the United States and its allies can truly curb Iran’s nuclear ambitions by diplomatic means. Moreover, the West’s current focus on Iran’s nuclear program is deeply dangerous insofar as it fails to recognize—let alone address—Iran’s other international activities or its foreign policy aims. Those objectives are global, and they continue to grow in scope and menace. In this sobering book, Ilan Berman illuminates the multiple dimensions of the Iranian threat and exposes the perils of lodging confidence in diplomacy with the Islamic Republic.