If the CIA is going to disrupt future terrorist attacks, it needs to recruit spies to infiltrate those groups in order to disrupt the terrorist attacks. Not to rely on what you and I are putting in chat messages on Google or Apple.

It's much less romantic in that you have to go to www.cia.gov and click "Apply Now." For me it was much more clandestine.

It's not up to Google, it's not up to Apple to turn over our personal communications in order to save the country. It's up to the CIA and it's up to the FBI to recruit foreign - I mean to recruit human sources, rather, to penetrate these groups.

I can remember only a small handful of instances in which I talked about politics with my parents. I remember my parents telling me that Daniel Ellsberg was a hero when I was six years old.

The truth of the matter is, we can certainly fight against terrorism and fight terrorist groups around the world without having to give up our own civil liberties. They're not mutually exclusive.

The big issue is this incremental whittling away of our constitutional rights, our most important constitutional rights, including freedom of speech. This is something that we really have to put our foot down on, and we have to fight it at every step of the way.

I think the president, very simply, has never read a copy of the Constitution. I think that that's true. He's just never bothered to read the Constitution, and he just has no understanding and appreciation of the First Amendment's protections for freedom of speech.