Former FBI agent Ali Soufan successfully interrogated captured Islamist terrorists after 9/11 without resorting to “enhanced’ techniques. In a SPIEGEL interview, he revealed how he got jihadists to talk using tea and trucker magazines and explained how 9/11 could have been prevented… Most of the people who went to Iraq to fight against us in Iraq, their motivation were the pictures of Abu Ghraib. …After 183 sessions of waterboarding, 9/11 planner Khalid Sheikh Mohammed still lied about the so-called Kuwaiti, Abu Ahmed al-Kuwaiti, the courier who finally led us to bin Laden this May. KSM claimed that he was a low-level guy and not important. We now know this was not true.
http://www.spiegel.de/international/world/0,1518,785558,00.html#ref=nlint