We've seen a departure from the traditional work of the National Security Agency. They've become sort of the national hacking agency, the national surveillance agency. And they've lost sight of the fact that everything they do is supposed to make us more secure as a nation and a society.

You are also asked to take an oath, and that's the oath of service. The oath of service is not to secrecy, but to the Constitution - to protect it against all enemies, foreign and domestic. That's the oath that I kept, that James Clapper and former NSA director Keith Alexander did not. You raise your hand and you take the oath in your class when you are on board. All government officials are made to do it who work for the intelligence agencies - at least, that's where I took the oath.

The NSA routinely lies in response to congressional inquiries about the scope of surveillance in America.

We have to be able to reject disproportionate and unjustified responses in the cyber domain just as we do in the physical domain.

When it is made to appear as though not knowing everything about everyone is an existential crisis, then you feel that bending the rules is okay. Once people hate you for bending those rules, breaking them becomes a matter of survival.

I'm not a spy, which is the real question

Even if you're not doing anything wrong, you are being watched and recorded.