permanent prisions requested for guantanamo

permanent prisions requested for guantanamo bay. "The Pentagon and the CIA have asked the White House to decide on a more permanent approach for those it is unwilling to set free or turn over to U.S. or foreign courts...

...As part of a solution, the Defense Department, which holds 500 prisoners at Guantanamo Bay, Cuba, plans to ask Congress for $25 million to build a 200-bed prison to hold detainees who are unlikely to ever go through a military tribunal for lack of evidence, defense officials told The Post.

The new prison, dubbed Camp 6, would allow inmates more comfort and freedom than they have now and would be designed for prisoners the government believes have no more intelligence to share. "

how did this happen? can it be legal to have a limbo-zone where "enemy combatants" are imprisioned for life without trial? what legal system does the military use?

the guardian has details on foreign prisioners in general.