I think it's a mistake to rely too much on any one economic factor. It's why investors try to spread their portfolio round.

The only way you can be comfortable about Donald Trump's foreign policy, is to think he doesn't really mean anything he says.

The Bernie Sanders phenomenon shows that it's not confined to Republicans. There is a general sentiment that America is on the wrong track.

It's a very bad thing when people exterminate other people, and people persecute minorities.

It's hard to conceive that it would take more forces to provide stability in post-Saddam Iraq than it would take to conduct the war itself and secure the surrender of Saddam's security forces and his army. Hard to imagine.

The Western alliance should have supported the Sunni opposition against the Assad regime from the beginning. As far as Iraq is concerned, if it had stayed stable the way it was in 2008, IS would not have been able to expand in Iraq the way they did. The mistake was that Barack Obama withdrew the armed forces from Iraq too fast.

I think, in the longer view of things, there is a very powerful pull in the direction of participatory government.