The internet is the most complex system that humans have ever invented. And with every internet enabled operation that we've seen so far, all of these offensive operations, we see knock on effects. We see unintended consequences.

If I target for example an email address, for example under FAA 702, and that email address sent something to you, Joe America, the analyst gets it. All of it. IPs, raw data, content, headers, attachments, everything. And it gets saved for a very long time - and can be extended further with waivers rather than warrants.

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.

I went to St. Petersburg - St. Petersburg is awesome.

What we're really debating is not security versus liberty, it's security versus surveillance. When we talk about electronic interception, the way that surveillance works is it preys on the weakness of protections that are being applied to all of our communications. The manner in which they're protected.

The greatest fear that I have regarding the outcome for America of these disclosures is that nothing will change.

There were no whistleblower protections that would've protected me - and that's known to everybody in the intelligence community. There are no proper channels for making this information available when the system fails comprehensively.