You would be surprised how effective, at least for influencing low-information voters, negative propaganda about me is.

Every time you pick up the phone, dial a number, write an e-mail, make a purchase, travel on the bus carrying a cell phone, swipe a card somewhere, you leave a trace, and the Government has decided that it's good idea to collect it all, everything, even if you've never been suspected of doing a crime.

I believe that when [senator Ron] Wyden and [senator Mark] Udall asked about the scale of this, they [the NSA] said it did not have the tools to provide an answer. We do have the tools and I have maps showing where people have been scrutinised most. We collect more digital communications from America than we do from the Russians.

Everyone everywhere now understands how bad things have gotten — and they’re talking about it. They have the power to decide for themselves whether they are willing to sacrifice their privacy to the surveillance state.

When Laura Poitras asked me if she could film our encounters, I was extremely reluctant. I’m grateful that I allowed her to persuade me. The result is a brave and brilliant film that deserves the honor and recognition it has received. My hope is that this award will encourage more people to see the film and be inspired by its message that ordinary citizens, working together, can change the world.

We've learned that we've allowed technological capabilities to dictate policies and practices, rather than ensuring that our laws and values guide our technological capabilities.

The chairs [in Congress] are part of the "Gang of Eight." They get briefed on every covert-action program and everything like that. They know where all the bodies are buried. At the same time, they get far more campaign donations than anybody else from defense contractors, from intelligence corporations, from private military companies.