The premise of this is just wrong. Clapper could have answered honestly without revealing any classified programs. http://www.volokh.com/2013/07/05/public-testimony-about-classified-activities-a-thought-on-the-clapper-dilemma/ …
@normative @OrinKerr makes same mistake Brenner did: Clapper exchange f-up to Alexander's willful choice to answer Q. http://www.emptywheel.net/2013/07/02/on-the-meanings-of-dishonor-and-hack/ …