You'll know the green revolution has been won when the word 'green' disappears.

It has always been my view that terrorism is not spawned by the poverty of money; it is spawned by the poverty of dignity. Humiliation is the most underestimated force in international relations and in human relations. It is when people or nations are humiliated that they really lash out and engage in extreme violence.

I'm from Minnesota. I'm optimistic. I mean, that's just who I am.

Supply chains cannot tolerate even 24 hours of disruption. So if you lose your place in the supply chain because of wild behavior you could lose a lot. It would be like pouring cement down one of your oil wells.

The Middle East would always be an important trading partner in just a market sense, like America is a big market for us, Asia is a big market, Europe is a big market. You are going to have hundreds of millions of consumers there, from just a standard market point of view, from a very narrow American point of view.

You'll know the green revolution has been won when the word 'green' disappears.

The Arab awakening has been, up to now, a lot about freedom from dictatorial regimes - Syria, Yemen, Libya, Tunisia, Bahrain and Egypt. But once you got freedom from, then you need freedom to. Freedom from is about destroying things. Freedom to is about constructing things, constructing the rule of law.