Encryption works. Properly implemented strong crypto systems are one of the few things that you can rely on. Unfortunately, endpoint security is so terrifically weak that NSA can frequently find ways around it.

The greatest fear that I have regarding the outcome for America of these disclosures is that nothing will change.

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 have no intention of hiding who I am because I know I have done nothing wrong.

We have to recognise that rights are being violated. The United Nations actually filed a report that found that that was the case, that mass surveillance is a violation of rights.

You're not patriotic just because you back whoever's in power today or their policies. You're patriotic when you work to improve the lives of the people of your country, your community and your family. Sometimes that means making hard choices, choices that go against your personal interest.

I have a somewhat sneaky way of effecting political change.