Do you check it when you travel, do you check it when you're just at home? They'd be able to tell something called your 'pattern of life.' When are you doing these kind of activities? When do you wake up? When do you go to sleep? What other phones are around you when you wake up and go to sleep? Are you with someone who's not your wife?

You are also asked to take an oath, and that's the oath of service. The oath of service is not to secrecy, but to the Constitution - to protect it against all enemies, foreign and domestic. That's the oath that I kept, that James Clapper and former NSA director Keith Alexander did not. You raise your hand and you take the oath in your class when you are on board. All government officials are made to do it who work for the intelligence agencies - at least, that's where I took the oath.

[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.

Getting inequality out there into the consciousness was important. All these political pundits now talking about the 2014 and 2016 elections are talking about inequality.

I considered bringing forward information about these surveillance programs prior to the election, but I held off because I believed that [Barack] Obama was genuine when he said he was going to change things. I wanted to give the democratic process time to work.

It is interesting that so many people who become disenchanted, who protest against their own organizations, are people who contributed something to them and then saw how it was misused.

When you think about the abolition of slavery for example, for the ruling class with the rich white people owning plantations and states, and things like that, slavery was to their benefit. To oppose it didn't make any sense at all on a rational basis. But on a rights basis, on a principle basis, it made obvious, overwhelming sense.