WASHINGTON, DC - JUNE 26:  Former Department of Justice official John Yoo testifies before the House Judiciary committee during a hearing on the administration's interrogation policy on June 26, 2008 in Washington, DC. Yoo has cited attorney-client privilege in avoiding answering specific questions about his involvement in drafting the controversial 2002 memo on interrogation techniques. Getty Images logo Getty Images 17 months ago

WASHINGTON, DC - JUNE 26: Former Department of Justice official John Yoo testifies before the House Judiciary committee during a hearing on the administration's interrogation policy on June 26, 2008 in Washington, DC. Yoo has cited attorney-client privilege in avoiding answering specific questions about his involvement in drafting the controversial 2002 memo on interrogation techniques.