Kiriakou says he questioned al Qaeda suspect but did n't waterboard him . NEW YORK ( CNN ) -- A former CIA agent who participated in interrogations of terror suspects said Tuesday that the controversial interrogation technique of `` waterboarding '' has saved lives , but he considers the method torture and now opposes its use . Kiriakou reportedly said after waterboarding that Allah told him to talk . Khalid Sheikh Mohammed : Suspect gave up information on al Qaeda , Abu Zubayda . Kiriakou : Tapes of Abu Zubayda 's interrogation should not have been destroyed .
Kiriakou says he questioned al Qaeda suspect but did n't waterboard him . Kiriakou reportedly said after waterboarding that Allah told him to talk . Khalid Sheikh Mohammed : Suspect gave up information on al Qaeda , Abu Zubayda . Kiriakou : Tapes of Abu Zubayda 's interrogation should not have been destroyed .