Is McCain Lying About the use of Torture?

In a CNN/Time article, it is alleged that McCain knew about sleep deprivation being used.

U.S. Senator John McCain, a torture survivor from his days as a captive during the Vietnam War, says his private comments about harsh interrogation methods were misrepresented by the Bush Administration in a recently released legal document intended to justify a six-day-long course of sleep deprivation for one CIA detainee in November of 2007.

Can we add McCain to the growing list of liars in Congress?