The 9/11 Commission Report (officially the Final Report of the National Commission on Terrorist Attacks Upon the United States) is the official report into the events leading up to the September 11, 2001 terrorist attacks. It was prepared by the National Commission on Terrorist Attacks Upon the United States (also known as the “9/11 Commission” or the “Kean–Hamilton Commission”) at the request of US President George W. Bush and Congress and is available to the public for sale or free download.