Abu Zubaydah (Zayn al-Abidin Muhammed Hussein Abu Zubaydah) is a Saudi citizen who helped manage the Khalden training camp in Afghanistan. Captured in Pakistan on March 28, 2002, he has since been held by the United States as an enemy combatant. Beginning in August 2002, Abu Zubaydah was the first prisoner to undergo "enhanced interrogation techniques." Since the Spanish Inquisition, these practices have been characterized as torture by many familiar with the techniques. There is disagreement among government sources as to how effective these techniques were; some officials contend that Abu Zubaydah gave his most valuable information before they were used; CIA lawyer John Rizzo said he gave more material afterward.