Establishes the National Commission on Presidential War Powers and Civil Liberties to investigate, and report to the President and Congress on, the broad range of executive branch national security policies undertaken since the terrorist attacks of September 11, 2001, including: (1) detention by the Armed Forces and the intelligence community; (2) the use by such entities of enhanced interrogation techniques or techniques not authorized by the Uniform Code of Military Justice; (3) "ghosting" or other policies intended to conceal an individual's capture or detention; (4) extraordinary rendition; (5) domestic warrantless electronic surveillance; (6) targeted killings away from conventional battlefields; and (7) the use of state secrets or other litigation tactics or privileges to avoid judicial review of national security actions.