There was not too much new in the memos. We all knew that waterboarding had been used, and that seems to be more of an issue than the revelation that a caterpillar, pre-certified as harmless, was used to scare a terrorist. The harm is making it abundantly clear that there is negligible downside risk to being a terrorist. Before making it official and pounding the point home through international publicity, terrorists had some reason to worry about being caught.