The Report of the National Commission on Terrorist Attacks Upon the United States, is the official report of 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 The commission interviewed over 1,200 people in 10 countries and reviewed over two and a half million pages of documents, including some closely guarded classified national security documents. Before it was released by the commission, the final public report was screened for any potentially classified information and edited as necessary.
