When the police officers knock on your door with a warrant, they don't expect you to give them a tour. It's supposed to be an adversarial process so that it's used in these extraordinary powers are applied only when there's no alternative. Only when they're absolutely necessary, and only when they're proportionate to the threat faced by these individuals.

I don't want to directly confront great powers, which we cannot defeat on their terms. They have more money, more clout, more airtime. We cannot be effective without a mass movement, and the American people today are too comfortable to adapt to a mass movement.

They are intent on making every conversation and every form of behaviour in the world known to them.

I'm not a spy for Russia or China or any other country for that matter.

What the NSA really wants is the capability of retrospective investigation. They want to have a perfect record of the last five years of your life, so when you come to their attention, they can know everything about you. I'm not down with that, but [Bill] Binney was trying to create something like that.

When people conceptualize a cyber-attack, they do tend to think about parts of the critical infrastructure like power plants, water supplies, and similar sort of heavy infrastructure, critical infrastructure areas. And they could be hit, as long as they're network connected, as long as they have some kind of systems that interact with them that could be manipulated from internet connection.

The community of technical experts who really manage the internet, who built the internet and maintain it, are becoming increasingly concerned about the activities of agencies like the NSA or Cyber Command, because what we see is that defense is becoming less of a priority than offense.