Habeas corpus is older than even our Constitution. It is the right to compel the executive to justify itself when it imprisons people. But the Senate voted to abolish it for Adel, in favor of the same "combatant status review tribunal" that has already exonerated him. That secret tribunal didn't have much impact on his life, but Graham says it is good enough.

http://www.informationclearinghouse.info/article10994.htm