A federal system is a system of government in which power is divided between a central Authority and constituent political units .
I hope that's help !
Answer:
The 9/11 Commission was a bipartisan committee of the Congress. It existed from December 22, 2002 to August 21, 2004 and investigated the causes of the September 11, 2001 terrorist attacks in the United States.
Its final report, dated July 22, 2004, detailed the planning, preparation and execution of the attacks, the initial response by the US authorities, the anti-terrorism policy of the US government since 1993, and warnings, in line with the legal mandate from the Commission. As the main cause that the attacks were not prevented, it calls the lack of collaboration between the CIA and FBI. From this it derives recommendations to the US government for necessary structural reforms in the authorities and other measures.
The Commission report is a major source of historical research on the attacks. Above all, criticism came from the fact that it did not name those responsible for the failure of the authorities, did not include important files in the examination, did not mention some traces, did not pursue others, and was also based on statements by Al Qaeda members who were tortured.