I love my country. I love my family. And I have dedicated my life to both of them.

The only thing I fear is the harmful effects on my family, who I won't be able to help any more. That's what keeps me up at night.

Many of our ally states don't have these constitutional protections - in the UK, in New Zealand, in Australia. They've lost the right to be free from unreasonable search and seizure without probable cause. All of those countries, in the wake of these surveillance revelations, rushed through laws that were basically ghostwritten by the National Security Agency to enable mass surveillance without court oversight, without all of the standard checks and balances that one would expect.

Being confronted with the realization that work you intended to benefit people is being used against them has a radicalizing effect.

I talk to cryptographers, some of the leading technologists in the world, all the time about how we can deal with these issues. It is not possible to create a back door that is only accessible, for example, to the FBI.

The US government still has no idea what documents I have because encryption works

It's fascinating to see how things have changed. Basically, every time the US government gets off the soapbox of the Sunday-morning talk shows, the average American's support for the surveillance revelations grows.