"The architects of this network of secret prisons and secret torture were a small but powerful group within the Bush administration. Dick Cheney stood at the center of the effort but delegated many of its operations to others. The vice president’s counsel (and later chief of staff), David Addington, was a ruthless, bullying enforcer of the strategy, effectively derailing all challenges by claiming that everything had been mandated by the president and by dismissing all legal and moral challenges as naïve and weak. John Yoo, a law professor from the University of California, Berkeley, who worked in the Justice Department’s Office of Legal Counsel, drafted an infamous memo giving legal cover to torture by simply redefining what torture was — virtually anything short of deliberate killing. George Tenet, the eager-to-please C.I.A. director; William Haynes, the militant general counsel to the Pentagon; Alberto Gonzales, the weak and pliable White House counsel who later became attorney general: all played vital roles in the creation and protection of these covert strategies. At the urging of Cheney — or his surrogate Addington — President Bush nullified the Geneva Conventions and, without publicly stating it, suspended habeas corpus for terror suspects, thus removing two important impediments to torture. Others worked to undermine the 1984 international Convention Against Torture, which, under American leadership, had provided the first explicit definition of what torture was."