OLC, then under the direction of Jack Goldsmith. In June 2004, another of Yoo's memos on interrogation techniques was leaked to the press, after which it was repudiated by Goldsmith and the OLC. On March 14, 2003, Yoo wrote a legal opinion memo in response to the General Counsel of the Department of Defense, in which he concluded that torture not allowed by federal law could be used by interrogators in overseas areas. Yoo cited an 1873 Supreme Court ruling, on the Modoc Indian Prisoners, where the Supreme Court had ruled that Modoc Indians were not lawful combatants, so they could be shot, on sight, to justify his assertion that individuals apprehended in Afghanistan could be tortured. Yoo's contribution to these memos has remained a source of controversy following his departure from the Justice Department; he was called to testify before the House Judiciary Committee in 2008 in defense of his role. The Justice Department's Office of Professional Responsibility (OPR) began investigating Yoo's work in 2004 and in July 2009 completed a report that was sharply critical of his legal justification for waterboarding and other interrogation techniques. The OPR report cites testimony Yoo gave to Justice Department investigators in which he claims that the "president's war-making authority was so broad that he had the constitutional power to order a village to be 'massacred.'" The OPR report concluded that Yoo had "committed 'intentional professional misconduct' when he advised the CIA it could proceed with waterboarding and other aggressive interrogation techniques against Al Qaeda suspects," although the recommendation that he be referred to his state bar association for possible disciplinary proceedings was overruled by David Margolis, another senior Justice department lawyer. In 2009, President Barack Obama issued Executive Order 13491, rescinding the legal guidance on interrogation authored by Yoo and his successors in the Office of Legal Counsel. In December 2005, Doug Cassel, a law professor from the University of Notre Dame, asked Yoo, "If the President deems that he's got to torture somebody, including by crushing the testicles of the person's child, there is no law that can stop him?", to which Yoo replied, "No treaty." Cassel followed up with "Also no law by Congress—that is what you wrote in the August 2002 memo," to which Yoo replied, "I think it depends on why the President thinks he needs to do that." War crimes accusations Glenn Greenwald has argued that Yoo