The most important thing to the United States is not being able to attack our adversaries, the most important thing is to be able to defend ourselves. And we can't do that as long as we're subverting our own security standards for the sake of surveillance.

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.

The Iraq war that I signed up for was launched on false premises. The American people were misled. Now, whether that was due to bad faith or simply mistakes in intelligence, I can't say for sure. But I can say it shows the problem of putting too much faith in intelligence systems without debating them in public.

Encryption works. Properly implemented strong crypto systems are one of the few things that you can rely on. Unfortunately, endpoint security is so terrifically weak that NSA can frequently find ways around it.

[Bill] Binney will argue with you all day about ThinThread, but his idea was that it would collect everything about everybody but be immediately encrypted so no one could read it. Only a court could give intelligence officials the key to decrypt it. The idea was to find a kind of a compromise between [privacy rights and] the assertion that if you don't collect things as they happen, you won't have them later - because what the NSA really wants is the capability of retrospective investigation.

It's clear the CIA was trying to play 'keep away' with documents relevant to an investigation by their overseers in Congress, and that's a serious constitutional concern. But it's equally if not more concerning that we're seeing another 'Merkel Effect,' where an elected official does not care at all that the rights of millions of ordinary citizens are violated by our spies, but suddenly it's a scandal when a politician finds out the same thing happens to them.

A given order may at any given time fail to represent those values, even work against those values. I think that's the dynamic we're seeing today.