Given the fiasco about Iraq’s weapons of mass destruction, it is only natural that many Americans are suspicious when the Bush administration warns that Iran is pursuing nuclear weapons. And against the background of many exaggerated claims about a direct Iraqi role in terrorism against the United States, it is to be expected that many Americans are skeptical about U.S. claims that Iran is the world’s leading sponsor of terror. The U.S. government has a tough task to convince Americans that Iran is a real threat. Undertaking that task is well worthwhile.