Abu Zubaydah was waterboarded by the CIA. In 2002, U.S. intelligence located Abu Zubaydah by tracing his phone calls. He was captured 28 March 2002, in a safehouse located in a two-story apartment in Faisalabad, Pakistan. One of Abu Zubaydah's FBI interrogators, Ali Soufan, wrote a book about his experiences. He later testified to Congress that Zubaydah was producing useful information in response to conventional interrogation methods, including the names of Sheikh Mohammed and Jose Padilla. He stopped providing accurate information in response to harsh techniques. Soufan, one of the FBI's most successful interrogators, explained, "When they are in pain, people will say anything to get the pain to stop. Most of the time, they will lie, make up anything to make you stop hurting them. That means the information you're getting is useless." Participating in his later interrogation by the CIA were two American psychologists, James Elmer Mitchell and R. Scott Shumate. In December 2007, The Washington Post reported that there were some discrepancies regarding reports about the number of times Zubaydah was waterboarded. According to a previous account by former CIA officer John Kiriakou, Abu Zubaydah broke after just 35 seconds of waterboarding, which involved stretching cellophane over his mouth and nose and pouring water on his face to create the sensation of drowning. Kiriakou later admitted that he had no first hand knowledge of the interrogation and accused the CIA of using him to spread disinformation. Former CIA operative John Kiriakou in 2007 told CNN's "American Morning" that the waterboarding of Al Qaeda's Abu Zubaydah indirectly led to the arrest of Khalid Sheikh Mohammed: The former agent, who said he participated in the Abu Zubayda interrogation but not his waterboarding, said the CIA decided to waterboard the al Qaeda operative only after he was "wholly uncooperative" for weeks and refused to answer questions. All that changed – and Zubayda reportedly had a divine revelation – after 30 to 35 seconds of waterboarding, Kiriakou said he learned from the CIA agents who performed the technique. The terror suspect, who is being held at Guantanamo Bay, Cuba, reportedly gave up information that indirectly led to 2003 raid in Pakistan yielding the arrest of Khalid Sheikh Mohammed, an alleged planner of the 11 September 2001, attacks, Kiriakou said. The CIA was unaware of Mohammed's stature before the Abu Zubayda interrogation, the former agent said. Khalid Sheikh Mohammed Khalid Sheikh Mohammed