If you study all the footage carefully, it s clear that both sides tried.

I went down to Washington. I saw these guys, and said, I did what you asked me. I looked at what's out there.

I looked at slaves. I met slaveholders, and I looked very deeply into slave based businesses because this is an economic crime.

This I had just arrived in Barcelona for the first time, and I thought you know, fly all night, I looked up, and I thought, wow, how clean.

And if you go through the first 25 or 30 names of each of the commodities, what you begin to see is, gosh, there's Cargill here, there's Cargill there, there's Cargill everywhere.

George Whitesides Yes, I think you could. Because if you look at the components from which the system is made and examine their fragility, or their stability, you can probably build a kind of risk assessment based on that basis.