Col. Lawrence Wilkerson, Chief of Staff for former Secretary of State Colin Powell, told CNN's Kiran Chetry that the CIA regularly didn't tell the whole truth in briefings. "The leadership of the CIA does not have a stellar record about telling the full and unequivocal truth about its covert operations," said Wilkerson.

But Wilkerson doesn't think that an investigation into the CIA's practices would prove his claims. "I doubt very seriously if [Speaker Nancy Pelosi] has the kind of power -- and I mean this seriously -- to cause evidence to come forward from the CIA that would be self-incriminating. I just don't think that's going to happen."

This video is from CNN's American Morning, broadcast May 20, 2009.

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