As a general rule, US-based multinationals should not be trusted until they prove otherwise. This is sad, because they have the capability to provide the best and most trusted services in the world if they actually desire to do so.

I believe that when [senator Ron] Wyden and [senator Mark] Udall asked about the scale of this, they [the NSA] said it did not have the tools to provide an answer. We do have the tools and I have maps showing where people have been scrutinised most. We collect more digital communications from America than we do from the Russians.

To do that they, the NSA specifically, targets the communications of everyone. It ingests them by default. It collects them in its system and it filters them and it analyses them and it measures them and it stores them for periods of time simply because that's the easiest, most efficient, and most valuable way to achieve these ends. So while they may be intending to target someone associated with a foreign government or someone they suspect of terrorism, they're collecting you're communications to do so.

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.

And that's not something I'm willing to support, it's not something I'm willing to build and it's not something I'm willing to live under.

One concern I had while I was working actively in the intelligence community - being someone who had broad access, who was exposed to more reports than average individuals, who had a better understanding of the bigger picture - was that the post - World War II, post - Cold War directions of societies were either broadly authoritarian or [broadly] liberal or libertarian.

I acted on my belief that the NSA's mass surveillance programs would not withstand a constitutional challenge, and that the American public deserved a chance to see these issues determined by open courts. Today, a secret program authorized by a secret court was, when exposed to the light of day, found to violate Americans' rights. It is the first of many.