But there have been many news reports that water-boarding has been used on Khalid Sheikh Mohammed, who is one of the major al Qaeda figures that we have in U.S. custody.

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.

There's a difference between those two [George Soroses and the Tom Steyers] and the Kochs that I think is important.

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.

What I write about is how much influence it's had in things like state legislatures and governorships and congressional races. The other thing that's even more important in the long run is that very extreme money has affected the ecosystem of ideology in the country.

We would see another president being accused of being illegitimate, and undermined from day one, which is exactly what these donors did to [Barack] Obama.

The Kochs have been activists since the 1970s. You can go back and look at the platform of the Libertarian Party in 1980 and see what they really believe in. They wanted to abolish huge swaths of the U.S. government, including the Internal Revenue Service. They want to get rid of Social Security. They'd like to get rid of Medicare. They'd like to abolish the Environmental Protection Agency, which directly affects their business.