Comey never admits that its the NSA program he is talking about. This assumption is made by Specter. Comey never confirms it. Apparently, Gonzales previously testified that it was something else.

On February 6, 2006, at a Senate Judiciary Committee hearing, you were asked whether Mr. Comey and others at the Justice Department had raised concerns about the NSA wiretapping program. You stated in response that the disagreement that occurred was not related to the wiretapping program confirmed by the President in December 2005, which was the topic of the hearing.

It might not be the NSA program...