I would argue that there's been a backlash this year [2016]. They [the Kochs] pushed the [Republican] party too far right. The other thing that the backlash is against is the sense that politicians have been bought and sold.

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.

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.

The concern that I have is that, as wealth continues to concentrate in the hands of a few, economic inequality grows, and power also becomes more unequal.

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.

It's hard for them to run away from their record. The Kochs are businessmen.

Torture is illegal, both in the U.S. and abroad. So - and that is true for the Bush administration and for any other administration.