US administration does not want me to return. People forget how I ended up in Russia. They waited until I departed Hong Kong to cancel my passport in order to trap me in Russia, because it's the most effective attack they have against me, given the political climate in the United States.

So many of the things we're told by the government simply aren't true.

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.

It's much more important for U.S. to be able to defend against foreign attacks than it is to be able to launch successful attacks against foreign adversaries.

My perspective is if you're not willing to be called a few names to help out your country, you don't care enough.

In the United States, there hasn't been much legislative change on the surveillance issue, although there are some tepid proposals.

By creating a self-policing, self-reporting, sort of self-monitoring culture through law, through statute, and imposing that on the academic world, I think not only are we losing a significant measure of freedom in academic traditions and in our civil society, but we're actually making ourselves less competitive with every other country around the world that does not do that. Because that's where researchers are going to go and that's where academics are going to go. And ultimately, that's where breakthroughs are going to occur.