Ethically, I think pretty much every code of ethics for doctors suggests that they should not be in an interrogation room, particularly if there's anything coercive or abusive going on.

[Tom] Steyer is specifically spending money on candidates who will take action against climate change.

So you've got these regular, middle-class voters who don't hate the government as much as the Kochs do. They're Republicans, but they still want government programs. They want Social Security, they want Medicare. They need it.

It was our view of the worst that could befall our people if they were taken captive. So, what was fascinating to me was that somehow it appears the techniques that we have feared most in the world would be used on our people, we are using on people in our custody.

They [the Kochs] want free trade and cheap labour. They own the second-largest private company in America, which is a huge multinational corporation. So they are on a different wavelength.

The Kochs are very much involved in this election, not backing [Donald] Trump but backing everything down the ballot from him. They're pouring money into capturing the Senate and the House of Representatives, and state Houses across the country.

One of the oddities of this election is the man that [Donald] Trump chose as his vice-president, Mike Pence, is one of the Kochs' favourite politicians.