I carefully evaluated every single document I disclosed to ensure that each was legitimately in the public interest. There are all sorts of documents that would have made a big impact that I didn't turn over, because harming people isn't my goal. Transparency is.

Extremists are not going to disappear.

[Occupy Wall Street] had an impact on consciousness. It was not effective in realizing change.

You simply have to eventually fall under suspicion from somebody even by a wrong call. And then they can use this system to go back in time and scrutinize every decision you've ever made, every friend you've ever discussed something with. And attack you on that basis to sort to derive suspicion from an innocent life and paint anyone in the context of a wrongdoer.

I carefully evaluated every single document I disclosed to ensure that each was legitimately in the public interest. There are all sorts of documents that would have made a big impact that I didn't turn over, because harming people isn't my goal. Transparency is.

If even one country, an Iceland for example, defects from this global legislative bargain and says no, we're not going to enforcement mass surveillance here. We're not going to do that. That's where all of the data centres, all the service providers in the world will relocate to. And I think that gives us a real chance to see a more liberal than authoritarian future.

We have the right of revolution. Revolution does not always have to be weapons and warfare; it's also about revolutionary ideas.