Emptywheel has a post analysing the effectiveness of detainee interrogations based on references in the 9/11 Commission report to interrogations of Abu Zubaida. She says she plans to extend this method to KSM’s interrogations cited in the commission’s report, and gives an example of one of his alleged statements as possible evidence of him giving up new information to interrogators. However, in the example she uses the US already knew most (at least) of what the commission attributes to him.