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The bill is complex partly because negotiations were rushed, following a timetable set by President Bush....
...(The bill)would bar detainees from challenging the legality of their detention or treatment by the CIA or the U.S. military in any court. The administration has said this controversial "court-stripping" provision is needed so that dangerous detainees could be subjected to lengthy interrogations without hope of release before military trials and could not obstruct or delay trials.
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The bill would also bar detainees from citing the Geneva Conventions -- which the United States ratified in 1949 -- "as a source of rights" in any U.S. court, including the military panels or "commissions" established by the new law. It further states that President Bush has the authority to interpret the meaning of a Geneva Conventions provision barring detainee abuses that fall below the threshold of "grave breaches."
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Another provision would explicitly bar U.S. courts from considering any "foreign or international source of law" in deciding what U.S. interrogators can lawfully do under the War Crimes Act. Eugene R. Fidell, president of the nonprofit National Institute of Military Justice, said this appears to represent one facet of a broad administration effort to keep its treatment of terrorism suspects "hermetically sealed" from treaties and the traditional law of military justice.
http://www.washingtonpost.com/wp-dyn/content/article/2006/09/22/AR2006092200507.html