Soon, Congress will vote on one of the most important and hotly contested foreign policy agreements in decades. The Iran Nuclear Deal will have a major impact on America's national security and the future stability of the Middle East, and it will help define President Obama's legacy. In this hour-long documentary special, we look back at the last 10 years of US policy towards Iran, including an oral history with they key players. We also look ahead to how the Joint Comprehensive Plan of Action will play out over the next 10 years, and we'll visit Tehran and Tel Aviv to hear how individuals in those countries perceive the deal.