John Yoo

Yoo's forthcoming book, Defender in Chief: How Donald Trump Is Fighting for the Constitution, was announced with a release date scheduled for July 2020.

In 2019, on Fox news, Yoo made the comment "Some might call that espionage" when discussing Active Military Lt. Col. Alexander Vindman, the top Ukraine expert on the National Security Council. Vindman served for over two decades in the United States Army. He was awarded a Purple Heart after being injured in an IED attack while he served in Iraq. Vindman was set to testify in front of Congress the next day. Yoo subsequently said "I really regret the choice of words" and that he had been referring to Ukrainian officials rather than Vindman.

'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.'

After the December 2014 release of the executive summary of the Senate Intelligence Committee report on CIA torture, Erwin Chemerinsky, then the dean of the University of California, Irvine School of Law, called for the prosecution of Yoo for his role in authoring the Torture Memos as "conspiracy to violate a federal statute".

Haynes, Feith, Yoo, Bybee, Gonzales and—at the apex—Addington, should never travel outside the US, except perhaps to Saudi Arabia and Israel. They broke the law; they violated their professional ethical code. In the future, some government may build the case necessary to prosecute them in a foreign court, or in an international court.

On April 13, 2013, the Russian Federation banned Yoo and several others from entering the country because of alleged human rights violations. The list was a direct response to the so-called Magnitsky list revealed by the United States the day before. Russia stated that Yoo was among those responsible for "the legalization of torture" and "unlimited detention".

On May 12, 2012, the Kuala Lumpur War Crimes Commission found Yoo, along with former President Bush, former Vice President Cheney, and several other senior members of the Bush administration, guilty of war crimes in absentia. The trial heard "harrowing witness accounts from victims of torture who suffered at the hands of US soldiers and contractors in Iraq and Afghanistan".

While the District Court ruled in favor of Padilla, the case was appealed by Yoo in June 2010. On May 2, 2012, the Ninth Circuit Court of Appeals held that Yoo had qualified immunity at the time of his memos (2001–2003), because certain issues had not then been settled legally by the U.S. Supreme Court. Based on the Supreme Court's decision in Ashcroft v. al-Kidd (2011), the Appeals Court unanimously ruled against Padilla, saying that, when he was held as a detainee, it had not been established that an enemy combatant had the "same constitutional protections" as a convicted prisoner or suspect, and that his treatment had not been legally established at the time as torture.

During 2012 and 2014, Yoo published two books with Oxford University Press. Taming Globalization was co-authored with Julian Ku in 2012, and Point of Attack was published under his single authorship in 2014. His 2017 book Striking Power: How Cyber, Robots, and Space Weapons Change the Rules for War is co-authored with by Jeremy Rabkin.

Glenn Greenwald has argued that Yoo could potentially be indicted for crimes against the laws and customs of war, the crime of torture, and/or crimes against humanity. Criminal proceedings to this end have begun in Spain: in a move that could lead to an extradition request, Judge Baltasar Garzón in March 2009 referred a case against Yoo to the chief prosecutor. The Spanish Attorney General recommended against pursuing the case.

In 2009, the Spanish Judge Baltasar Garzón Real launched an investigation of Yoo and five others (known as the Bush Six) for war crimes.

The Department of Justice's Office of Professional Responsibility concluded in a 261-page report dated July 29, 2009, that Yoo committed "intentional professional misconduct" when he "knowingly failed to provide a thorough, objective, and candid interpretation of the law", and it recommended a referral to the Pennsylvania Bar for disciplinary action. But, David Margolis, a career Justice attorney, in a memorandum dated January 5, 2010, countermanded the recommended referral. While Margolis was careful to avoid "an endorsement of the legal work," which he said was "flawed" and "contained errors more than minor", concluding that Yoo had exercised "poor judgment", he did not find "professional misconduct" sufficient to authorize OPR "to refer its findings to the state bar disciplinary authorities".

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.

On June 26, 2008, Yoo and David Addington, former counsel and chief of staff to Vice-President Dick Cheney, testified before the House Judiciary Committee in what became a contentious hearing on detainee treatment, interrogation methods, and the extent of executive branch authority.

Jordan Paust of the University of Houston Law Center concurred with supporters of prosecution and in early 2008 criticized the US Attorney General Michael Mukasey's refusal to investigate and/or prosecute anyone who relied on these legal opinions:

On January 4, 2008, José Padilla, a U.S. citizen convicted of terrorism, and his mother sued John Yoo in the U.S. District Court, Northern District of California (Case Number 08-cv-00035-JSW), known as Padilla v. Yoo. The complaint sought $1 in damages based on the alleged torture of Padilla, attributed to the authorization by Yoo's torture memoranda. Judge Jeffrey White allowed the suit to proceed, rejecting all but one of Yoo's immunity claims. Padilla's lawyer says White's ruling could have a broad effect for all detainees.

In a 2006 book and a 2007 law review article, Yoo defended President Bush's terrorist surveillance program, arguing that "the TSP represents a valid exercise of the President's Commander-in-Chief authority to gather intelligence during wartime". He claimed that critics of the program misunderstand the separation of powers between the President and Congress in wartime because of a failure to understand the differences between war and crime, and a difficulty in understanding the new challenges presented by a networked, dynamic enemy such as Al Qaeda. "Because the United States is at war with Al Qaeda, the President possesses the constitutional authority as Commander-in-Chief to engage in warrantless surveillance of enemy activity." In a Wall Street Journal opinion piece in July 2009, Yoo wrote it was "absurd to think that a law like FISA should restrict live military operations against potential attacks on the United States."

On November 14, 2006, invoking the principle of command responsibility, the German attorney Wolfgang Kaleck filed a complaint with the Attorney General of Germany (Generalbundesanwalt) against Yoo, along with 13 others, for his alleged complicity in torture and other crimes against humanity at Abu Ghraib in Iraq and Guantánamo Bay. Kaleck acted on behalf of 11 alleged victims of torture and other human rights abuses, as well as about 30 human rights activists and organizations. The co-plaintiffs to the war crimes prosecution included Adolfo Pérez Esquivel, Martín Almada, Theo van Boven, Sister Dianna Ortiz, and Veterans for Peace. Responding to the so-called "torture memoranda," Scott Horton noted

On December 1, 2005, Yoo appeared in a debate in Chicago with Doug Cassel, a law professor from the University of Notre Dame. During the debate, Cassel asked Yoo,

In 2004 Jack Goldsmith, then head of the OLC, advised agencies not to rely on these memos and withdrew them as authorized legal opinions.

In December 2003, Yoo's memo on permissible interrogation techniques, also known as the Bybee memo, was repudiated as legally unsound by the 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.

In addition, 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.

Soon after his appointment in October 2003 as chief of the Office of Legal Counsel, DOJ, Jack Goldsmith withdrew Yoo's torture memoranda. The Padilla complaint, on page 20, cited Goldsmith's 2007 book The Terror Presidency in support of its case. In it Goldsmith had claimed that the legal analysis in Yoo's torture memoranda was incorrect and that there was widespread opposition to the memoranda among some lawyers in the Justice Department. Padilla's attorney used this information in the lawsuit, saying that Yoo caused Padilla's damages by authorizing his alleged torture by his memoranda.

After he left the Department of Justice, it was revealed that Yoo had written legal opinions, including co-writing the Torture Memo of August 1, 2002, that narrowly defined torture and American habeas corpus obligations. They authorized what were called enhanced interrogation techniques and were issued to the CIA. In addition, at the time the OLC issued a new definition of torture. Most actions that fall under the international definition did not fall within this new definition advocated by the U.S.

Yoo became known in the mid-2000s for his legal opinions concerning executive power, warrantless wiretapping, and the Geneva Conventions while serving in the Office of Legal Counsel (OLC) of the Department of Justice, during the George W. Bush administration. In 2009, two days after taking office, President Barack Obama issued Executive Order 13491, repudiating and revoking all legal guidance on interrogation authored by Yoo and his successors in the Office of Legal Counsel between September 11, 2001, and January 20, 2009.

Yoo has been principally associated with his work from 2001 to 2003 in the Department of Justice's Office of Legal Counsel (OLC) under Attorney General John Ashcroft during the George W. Bush Administration. Yoo's expansive view of presidential power led to a close relationship with Vice President Dick Cheney's office. He played an important role in developing a legal justification for the Bush administration's policy in the war on terrorism, arguing that prisoner of war status under the Geneva Conventions does not apply to "enemy combatants" captured during the war in Afghanistan and held at the Guantánamo Bay detention camp.

Yoo also authored the October 23, 2001 memo asserting that the President had sufficient power to allow the NSA to monitor the communications of US citizens on US soil without a warrant (known as the warrantless wiretap program) because the Fourth Amendment does not apply. Or, as another memo says in a footnote, "Our office recently concluded that the Fourth Amendment had no application to domestic military operations." That interpretation is used to assert that the normal mandatory requirement of a warrant, under the Foreign Intelligence Surveillance Act, could be ignored.

In 2000 Yoo strongly criticized what he viewed as the Clinton administration's use of powers of what he termed the "Imperial Presidency". He said it undermined "democratic accountability and respect for the law". Yet, Yoo has defended President Clinton, for his decision to use force abroad without congressional authorization. He wrote in The Wall Street Journal on March 15, 1999, that Clinton's decision to attack Serbia was constitutional. He then criticized Democrats in Congress for not suing Clinton as they had sued presidents Bush and Reagan to stop the use of force abroad.

In 1998 Yoo criticized what he characterized as an imperial use of executive power by the Clinton administration. Yoo has defended executive privilege, but only to protect national security, diplomatic, and military secrets. In an opinion piece in the WSJ, he criticized the Clinton administration for misusing the privilege to protect the personal, rather than official, activities of the President, such as in the Monica Lewinsky affair. At the time, Yoo also criticized President Clinton for contemplating defiance of a judicial order. He suggested that Presidents could act in conflict with the Supreme Court, but that such measures were justified only during emergencies.

Yoo was a law clerk for Judge Laurence H. Silberman of the United States Court of Appeals for the District of Columbia Circuit and for Supreme Court Justice Clarence Thomas. He also served as general counsel of the Senate Judiciary Committee. Yoo has been a professor at the University of California, Berkeley, School of Law since 1993. He has written two books on presidential power and the war on terrorism, and many articles in scholarly journals and newspapers. He has held the Fulbright Distinguished Chair in Law at the University of Trento and has been a visiting law professor at the Free University of Amsterdam, the University of Chicago, and Chapman University School of Law. Since 2003, Yoo has also been a visiting scholar at the American Enterprise Institute, a conservative think tank in Washington. He writes a monthly column, entitled "Closing Arguments", for The Philadelphia Inquirer. He wrote and continues to write academic books including Crisis and Command.

After high school, Yoo went to Harvard University, where he majored in American history and was a resident of Winthrop House. He graduated from Harvard in 1989 with an A.B. summa cum laude. He then studied law at the Yale Law School, where he was a member of the Yale Law Journal. He graduated from Yale with a Juris Doctor degree in 1992. Yoo was admitted to practice law in Pennsylvania in 1993.

Born in Seoul, South Korea, Yoo immigrated to the United States with his family when he was a young child and grew up in Philadelphia. He attended high school at Episcopal Academy and graduated in 1985.

John Choon Yoo (Korean: 유준 ; born July 10, 1967) is a Korean-American attorney and former government official best known for authoring the so-called Torture Memos, which provided a legal rationale for the torture of detainees during the War on Terror.