People in both parties from the congressional intelligence committees - all these co-opted officials who play cheerleader for spy agencies - go on these Sunday shows and they say: "Snowden was a traitor. He works against Americans. He works for the Chinese. Oh, wait, he left Hong Kong - he works for the Russians."

People have to be free to investigate computer security. People have to be free to look for the vulnerabilities and create proof of concept code to show that they are true vulnerabilities in order for us to secure our systems.

I know that fundamentally, changes to the fabric of the internet, and sort of our methods of communication, can enforce our rights.

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.

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.

Do we want to emulate China in the way that China emulates the West? I think, for most Americans, the answer to that question would be no.

Cyber Command is supposed to be defending our critical infrastructure at home, but they are spending so much time looking at how to attack networks, how to break systems, and how to turn things off. I don't think it adds up as representing a defensive team.