Another thought experiment: Suppose KSM is not at all involved with 9/11. Why fabricate his confession?

Whoever pinned it on him would have to know he would attract a great deal of attention. Let's say the ISI and Bin Laden were somehow involved with 9/11. Why name KSM and draw attention to the ISI/CIA nexus, other than to establish a useful patsy?

That is, if KSM is not involved with 9/11, why bring the world's attention to such a troublesome figure? Why not blame some anonymous Arab, and achieve the same goal for the Military-Industrial Complex?

I'm certain some of what KSM is saying is false, but I'm not sure what his connection to 9/11 is.