I've been recognized every now and then. It's always in computer stores. It's something like brain associations, because I'll be in the grocery store and nobody will recognize me. Even in my glasses, looking exactly like my picture, nobody will recognize me. But I could be totally clean-shaven, hat on, looking nothing like myself in a computer store, and they're like, "Snowden?!"

You are not even aware of what is possible. The extent of their capabilities is horrifying. We can plant bugs in machines. Once you go on the network, I can identify your machine. You will never be safe whatever protections you put in place.

When the lights go out at a power plant sometime in the future, we're going to know that that's a consequence of deprioritizing defense for the sake of an advantage in terms of offense.

I have been a systems engineer, systems administrator, a senior adviser for the Central Intelligence Agency, a solutions consultant and a telecommunications information systems officer.

When you use any kind of internet based capability, any kind of electronic capability, to cause damage to a private entity or a foreign nation or a foreign actor, these are potential acts of war.

What we're really debating is not security versus liberty, it's security versus surveillance. When we talk about electronic interception, the way that surveillance works is it preys on the weakness of protections that are being applied to all of our communications. The manner in which they're protected.

People at civil-liberties organizations say it's a sea change, and that it's very clear judges have begun to question more critically assertions made by the executive. Even though it seems so obvious now, it is extraordinary in the context of the last decade, because courts had simply said they were not the best branch to adjudicate these claims - which is completely wrong, because they are the only nonpolitical branch. They are the branch that is specifically charged with deciding issues that cannot be impartially decided by politicians.