[mullingitover]

> That makes it sound like the investigation is politically motivated, which I find disappointing.

No, what's politically motivated was that the chain of command that authorized and enacted torture was never prosecuted. This is not just a simple violation, but a Grave Breach as defined in the Geneva Conventions. In an effort to avoid what would be an inevitable partisan shitstorm, the heinous acts committed by the CIA and authorized explicitly by the White House were whitewashed. This report was the only thing that remained in the arsenal to hold these perpetrators accountable, and the CIA was actively attempting to thwart its work.