Defense Secretary Robert Gates said that the problem with hearings for the detainees at Guantanamo Bay is that there is NO LEGAL BASIS for holding them and that they SHOULD NEVER BE RELEASED.
First of all, if we are not a nation of laws, what are we?
Secondly, by deciding that all detainees should never be released, and denying them a fair hearing, you are making sure that no one will ever find out if you've imprisoned the wrong person.
Wrongful imprisonment is a very important issue here because of how the detainees were treated. Making sure the detainees never get out is a great way to see to it that no one ever knows what you did.
It was never a great strategy, and one that will fail in the near future.