This is a good step. Many people are responsible for these despicable tortures, and they should all face justice. But top federal officials will never face justice under the current system, which allows them to invoke the sacred mantra of "national security" as a cloak for their evil machinations. The whole shibboleth of "national security" needs to be deconstructed and shown for the fraud that it is--for the very people supposed to be providing "national security" are the ones who are undermining it.
It strains the imagination, why anyone would authorize, encourage, aid or abet the torture of anyone, human or four-legged animal, or indeed, any sentient being. And can we even be certain that such tortures do not still go on, in the Byzantine byways of the National Security State?
About the only thing one can be sure of is that torture was not condoned to keep us safe, or to obtain vital information for national security. For, as is well known, tortured persons will say anything, true and false, to get the torture to stop. And that is well known, even by soulless thugs like Cheney who continue to defend torture.