[Sovereignty] would break the American monopoly, but it would also break Internet business, because you'd have to have a data center in every country. And data centers are tremendously expensive, a big capital investment.

The new iPhone has encryption that protects the contents of the phone. This means if someone steals your phone - if a hacker or something images your phone - they can't read what's on the phone itself, they can't look at your pictures, they can't see the text messages you send, and so forth. But it does not stop law enforcement from tracking your movements via geolocation on the phone if they think you are involved in a kidnapping case, for example.

From the very beginning, I said there are two tracks of reform: there's the political and the technical. I don't believe the political will be successful, for exactly the reasons you underlined. The issue is too abstract for average people, who have too many things going on in their lives.

Until we reform our laws and until we fix the excesses of these old policies that we inherited in the post-9/11 era, we're not going to be able to put the security back in the NSA.

That's the key - to maintain the garden of liberty, right? This is a generational thing that we must all do continuously. We only have the rights that we protect. It doesn't matter what we say or think we have. It's not enough to believe in something; it matters what we actually defend.

Anyway, it's not true that the authorities cannot access the content of the phone even if there is no back door. When I was at the NSA, we did this every single day, even on Sundays. I believe that encryption is a civic responsibility, a civic duty.

It also comes down to parenting. It is important to know what your beliefs are, and that you have to stand up for them or you don't really believe in them. You know, my father and mother - in fact, every member of my immediate family - have worked for the federal government. Sometimes misunderstood is that I didn't stand up to overthrow the system.