And, as in the other cases where terrorists have waged war on America and have been give every possible right as if they are American civilians, their eventual release will be seen by their fellow terrorists as a goal to be reached by taking hostages and threatening to behead them if the release does not occur.
Problem is, was he read his Miranda rights? Was he given proper council? Was he interrogated with proper methods and not “Tortured”? If the answer is NO to any of these, the guy goes free. (And, he will get to sue the Federal Govt for millions of dollars.)