Why did Washington's calculations regarding Iran go wrong? "Iran": Barbara Tuckman believes that adopting policies that are against one's own interests is caused by narcissism, self-deception and insistence on unproven assumptions. American decision makers, envisioning the collapse of Iran's security structure, entered a race whose outcome was the opposite of their initial goals. Washington made a miscalculation due to ignorance of Iran's political and strategic culture. America continues to make decisions with the unipolar mindset of the 1990s, while the reality of the Middle East is moving towards multilateralism. America's past successes have provided the ground for narcissism and the erosion of this country's strategic effectiveness. The United States, with insufficient knowledge of Iran's society and economy, continues to imagine imminent victory. Read the full text here.