The vice president’s lawyer advocated what was considered the memo’s most radical claim: that the president may authorize any interrogation method, even if it crosses the line into torture. U.S. and treaty laws forbidding any person to “commit torture,” that passage stated, “do not apply” to the commander in chief, because Congress “may no more regulate the President’s ability to detain and interrogate enemy combatants than it may regulate his ability to direct troop movements on the battlefield.”
That same day, Aug. 1, 2002, Yoo signed off on a second secret opinion, the contents of which have never been made public. According to a source with direct knowledge, that opinion approved as lawful a long list of interrogation techniques proposed by the CIA — including waterboarding, a form of near-drowning that the U.S. government has prosecuted as a war crime since at least 1901. The opinion drew the line against one request: threatening to bury a prisoner alive.
Yoo said for the first time in an interview that he verbally warned lawyers for the president, Cheney and Defense Secretary Donald H. Rumsfeld that it would be a risky policy to permit military interrogators to use the harshest techniques, because the armed services, vastly larger than the CIA, could overuse the tools or exceed the limits. “I always thought that only the CIA should do this, but people at the White House and at DOD felt differently,” Yoo said. The migration of those techniques from the CIA to the military, and from Guantanamo Bay to Abu Ghraib, aroused worldwide condemnation when abuse by U.S. troops was exposed.