I certainly think it's important to speak up and say how unacceptable Donald Trump is. I'm always more than willing to do that.

NATO is still the most remarkable alliance in history. It stuck together through 40 years of Cold War, and it then joined together to fight in Afghanistan. In the 1980s, I would not have thought this was going to be possible.

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.

If the Arab world today looked like Tunisia, it would be a huge blow for the extreme ideologies. But Tunisia needs more support than it is getting, particularly from their close neighbors in Europe who have a great stake in North Africa.

I think one has to say it's not just simply a matter of capturing people and holding them accountable, but removing the sanctuaries, removing the support systems...

I mean, we're going to probably debate the Iraq war for at least as long as I'm alive.

For the private sector to flourish, special privilege must give way to equal opportunity and equal risk for all.