Earlier quoted context omitted.
Clapper couldn't divulge the existence of a classified program in an open session hearing. If they really wanted answers vs. trying to grill the NSA in a public forum they could have asked the question in a closed session with only participants who've met the proper clearance level for said program disclosures. Unfortunately on HN anything NSA related is going to devolve into conspiracy theory groupthink these days v…
Clapper always had the option to decline answering a question. Choosing instead to lie means something.
http://en.wikipedia.org/wiki/Mu_(negative)#.22Unasking.22_th...