When it comes to political engagement, I'm not a politician - I'm an engineer.

The reality is if we sit back and allow a few officials behind closed doors to launch offensive attacks without any oversight against foreign nations, against people we don't like, against political groups, radicals, and extremists whose ideas we may not agree with, and could be repulsive or even violent - if we let that happen without public buy-in, we won't have any seat at the table of government to decide whether or not it's appropriate for these officials to drag us into some kind of war activity that we don't want, but we weren't aware of at the time.

Most of the secrets the CIA has are about people, not machines and systems, so I didn't feel comfortable with disclosures that I thought could endanger anyone.

The great fear that I have regarding the outcome for America of these disclosures is that nothing will change. [People] won't be willing to take the risks necessary to stand up and fight to change things And in the months ahead, the years ahead, it's only going to get worse. [The NSA will] say that because of the crisis, the dangers that we face in the world, some new and unpredicted threat, we need more authority, we need more power, and there will be nothing the people can do at that point to oppose it. And it will be turnkey tyranny.

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.

The state says: "Well, in order for it to be legitimate civil disobedience, you have to follow these rules." They put us in "free-speech zones"; they say you can only do it at this time, and in this way, and you can't interrupt the functioning of the government. They limit the impact that civil disobedience can achieve. We have to remember that civil disobedience must be disobedience if it's to be effective.

Bulk collection means all of your communications are being secretly intercepted. They are being stolen as they cross India, and they're being stored in these silos so that they can be rifled through at the convenience of secret agents, basically.