The only reason I do these interviews - I hate talking about myself, I hate doing this stuff - is because incredibly well-meaning people, whom I respect and trust, tell me that this will help bring about positive changes. It's not going to cause a sea change, but it will benefit the public.

I'm familiar with Andrei Sakharov reputation, but I don't know his personal history at all.

I think it's reasonable that the government, when it has a warrant from a court, when it's exposed to scrutiny by a legal process that would be upheld, not just nationally, but internationally as a reliable and robust standard rights protection, they can enjoy certain powers. This is no different from having the police able to get a warrant to go and search your house, to kick at your door because they think you're an arms dealer or something like that. There needs to be a process involved, it needs to be public, and it needs to be challengeable in court at all times.

It's becoming less and less the National Security Agency and more and more the national surveillance agency. It's gaining more offensive powers with each passing year.

If I am traitor, who did I betray? I gave all my information to the American public, to American journalists who are reporting on American issues. If they see that as treason, I think people really need to consider who they think they're working for. The public is supposed to be their boss, not their enemy.

A lot of people in 2008 voted for Obama. I did not vote for him. I voted for a third party. But I believed in Obama's promises. He continued with the policies of his predecessor.

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.