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.

I hope you have read the election programme of the Labour Party...this is not socialism. It is Bolshevism run mad.

If we don't do anything, if we go along with the status quo, we are going to have a mass surveillance world.

The NSA routinely lies in response to congressional inquiries about the scope of surveillance in America.

One of the reasons that I came forward and sort burned of my life to the ground, and I can't go back and see my family in the United States - I obviously lost my job, which I was quite comfortable with. I lost my home. It was because I felt there was no alternative.

Something we have to remember is that everything about the internet is interconnected. All of our systems are not just common to us because of the network links between them, but because of the software packages, because of the hardware devices that comprise it. The same router that's deployed in the United States is deployed in China.

It's much easier, I think, to protect communications while they're in transit at least, than it is to enforce legislation in every country in the world to say that you can't do this.