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.

It's interesting that you mention [Andrei] Sakharov's creative axis - he had produced something for the government that he then realized was something other than he intended. That's something [NSA whistleblower] Bill Binney and I share.

When people talk about Web 2.0, they mean that when the Internet, the World Wide Web, first became popular, it was one way only.

We decentralise permissions over the use of our communications.

A political decision has been made not to irritate the intelligence community. The spy agencies are really embarrassed, they're really sore - the revelations really hurt their mystique. The last ten years, they were getting the Zero Dark Thirty treatment - they're the heroes. The surveillance revelations bring them back to Big Brother kind of narratives, and they don't like that at all.

I've been recognized every now and then. It's always in computer stores. It's something like brain associations, because I'll be in the grocery store and nobody will recognize me. Even in my glasses, looking exactly like my picture, nobody will recognize me. But I could be totally clean-shaven, hat on, looking nothing like myself in a computer store, and they're like, "Snowden?!"

I have used mass surveillance to target people, so I do know how it works.