So when do the trials begin?

Republican Senator and former military Judge Advocate Lindsey Graham:

GRAHAM: I am convinced, as an individual senator, as a military lawyer for 25 years, that waterboarding…does violate our war crimes statute and is clearly illegal under domestic and international law. … I don’t think you have to have a lot of knowledge about the law to understand this technique violates Geneva Convention Common Article Three, the War Crimes statutes, and many other statutes that are in place.

So let's get on with an investigation, and prosecutions for all who committed, ordered, or aided and abetted, these crimes. That would seem to be a no-brainer as well.