I've been a spy for almost all of my adult life - I don't like being in the spotlight.

Internet exchanges and internet service providers - international fiber optic landing points - these are the key tools that governments go after in order to enable their programs of mass surveillance. If they want to be able to watch the entire population of a country instead of a single individual, you have to go after those bulk interchanges.

We can still publicly post a message to Facebook that's globally readable. But we could also adjust things so that they can only be shared with those closest to us, and the confident that this is enforced through both legal and a systemic standards-based protection.

We don't have a great clash of civilizations, a clash of ideologies, a clash of alternative models, where governments thought to themselves, if we go too far, if we sort of trample unreasonably on rights, we'll give birth to a political movement which will cost us our credibility, and will possibly cost us our offices, because people will vote for the other team, the other guys.

We're now more than a year since my NSA revelations, and despite numerous hours of testimony before Congress, despite tons of off-the-record quotes from anonymous officials who have an ax to grind, not a single US official, not a single representative of the United States government, has ever pointed to a single case of individualized harm caused by these revelations. This, despite the fact that former NSA director Keith Alexander said this would cause grave and irrevocable harm to the nation.

The internet is shared critical infrastructure for everyone on earth. It's not supposed to be a domain of warfare. We're not supposed to be putting the Unied States' economy on the frontlines in the battleground.

It's becoming less and less the National Security Agency and more and more the national surveillance agency. It's gaining more offensive powers with each passing year.