The purpose of this report is to review the September 11-12, 2012, terrorist attacks against two U.S. facilities in Benghazi, Libya. This review by the Senate Select Committee on Intelligence (hereinafter "SSCI" or "the Committee") focuses primarily on the analysis by and actions of the Intelligence Community (IC) leading up to, during, and immediately following the attacks. The report also addresses, as appropriate, other issues about the attacks as they relate to the Department of Defense (DoD) and Department of State (State or State Department).It is important to acknowledge at the outset that diplomacy and intelligence collection are inherently risky, and that all risk cannot be eliminated. Diplomatic and intelligence personnel work in high-risk locations all over the world to collect information necessary to prevent future attacks against the United States and our allies. Between 1998 (the year of the terrorist attacks against the U.S. Embassies in Kenya and Tanzania) and 2012, 273 significant attacks were carried out against U.S. diplomatic facilities and personnel. The need to place personnel in high-risk locations carries significant vulnerabilities for the United States. The Committee intends for this report to help increase security and reduce the risks to our personnel serving overseas and to better explain what happened before, during, and after the attacks.