Not only did Barack Obama order the closure of Guantanamo Bay, he has also ordered that secret CIA prisons be closed and that the CIA must abide by the Army Field Manual in conducting interrogations. The latter decision closes a serious loophole in the human rights policies of the previous administration.
While there are a lot of tricky decisions left to be made about exactly how the prisons will be closed, who will be tried, who will be released, and where, this is a major step towards American rehabilitation in the eyes of the world. Hopefully, this will underline the fact that the Bush policies on torture and imprisonment were an aberration from the overall American approach. Of course, their injustice could be highlighted all the more effectively through the prosecution of some of the people who illegally implemented and oversaw them to begin with.