I have talked about Abu Zubaydah many times on this blog. He is the man that my government wrongly thought was a member of al-qaeda so we used all of the torture techniques on him... and then a few more just because we could. But it turned out he was a nobody but since we did all of those horrible things to him we do not want to release him.
As part of the dog and pony show the government conducted a "periodic review" to see if he could be cleared for release.
Read more about it here.