Lest we forget that Nancy Pelosi is a liar.

Waterboarding and CIA controversy
Pelosi officially opposes the interrogation technique of waterboarding.[97] According to the CIA, while Pelosi was the ranking member of the House Intelligence Committee, she was told about enhanced interrogation techniques, including waterboarding authorized for a captured terrorist, Abu Zubaydah.[98][99][100] in one hour-long briefing in 2002. After the briefing, Pelosi said she "was assured by lawyers with the CIA and the Department of Justice that the methods were legal."[101] Two unnamed former Bush Administration officials say that the briefing was detailed and graphic, and at the time she didn't raise substantial objections[102].

Source:

http://en.wikipedia.org/wiki/Nancy_Pelosi