US News has a good synopsis of the case as it stands currently-
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Enemy combatants. President Bush created special military tribunals two months after 9/11 and has defended them as potentially more effective than civilian courts in bringing suspected Taliban and al Qaeda fighters to justice. He also has refused to give prisoner-of-war status to the approximately 450 suspects being held in Guantanamo, classifying them as "unlawful enemy combatants" not protected by the Geneva Conventions. The Geneva accord gives prisoners the right to a traditional court-martial and other legal protections. Though a poll in March by the Pew Research Center for the People and the Press showed the public divided on whether the government should hold detainees at Gitmo with no charges or trial, a growing number of critics argue that Bush has taken his commander-in-chief authority too far.
"When you fight a war not against a country but against a concept, it could go on forever," says Charles Gardner Geyh, an Indiana University law professor. "The court may be waking up to the fact if you don't draw some lines, executive power could continue to accumulate unchecked."
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Ill winds. Sources in the Justice Department are pessimistic about getting a definitive win, and President Bush for months has been signaling that he senses which way judicial winds are blowing. In May, amid growing international condemnation, he began talking about his desire to "end Guantanamo" and start releasing prisoners. Last week he seemed to accept that detainee cases may end up in civilian courts. "We're holding some people there that are darn dangerous," Bush said, "and ... we better have a plan to deal with them in our courts."
So it appears that Gitmo, which has damaged America's reputation, may be on its way to obsolescence, though the administration is struggling over what to do with prisoners who face arrest or death if repatriated to their home countries....
http://www.usnews.com/usnews/news/articles/060626/26hamdan.htm