Dick Cheney's daughter Liz Cheney, a former White House staffer, defended her dad's role in authorizing the torture of alleged terrorists Thursday, saying that waterboarding detainees should in some cases be part of the interrogation process. The military gained valuable information from the prisoners it waterboarded -- enough of a justification for the torture techniques, Cheney said on MSNBC. "Three people waterboarded and two people are people who gave us incredibly important and useful information, information that saved American lives after they were waterboarded," Cheney claimed, referring to Abu Zubaydah and Khalid Sheikh Mohammed, both high-ranking members of al-Qaeda.