People would publish their websites; other people would read them. But there was no real back and forth other than through e-mail. Web 2.0 was what they called the collaborative web - Facebook, Twitter, the social media.

If I target for example an email address, for example under FAA 702, and that email address sent something to you, Joe America, the analyst gets it. All of it. IPs, raw data, content, headers, attachments, everything. And it gets saved for a very long time - and can be extended further with waivers rather than warrants.

A zero-day exploit is a method of hacking a system. It's sort of a vulnerability that has an exploit written for it, sort of a key and a lock that go together to a given software package. It could be an internet web server. It could be Microsoft Office. It could be Adobe Reader or it could be Facebook.

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.

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 NSA and Israel wrote Stuxnet together.

There is more action in some other countries. In Germany, they've called for a very serious inquiry that's discovering more and more. They've just discovered a significant violation of the German Constitution that had been concealed from the Parliament.