As I previously pointed out, the interrogation of Zubaydah provided a TON of useful information. For example, there was a name that had been used in a lot of correspondence ("Mukhtar") that they could not identify. Zubaydah, thinking he was giving up trivial information, gave up that Mukhtar was KSM. This was an extremely important finding is that it led to KSM's capture.The truth is that the EIT interrogation of Zubaydah led to the capture of an entire group of AQ people, KSM among them