A recent review of different agricultural options for the future was conducted by a panel of experts. The scientists posed the question: How are we going to feed the world when there are nine billion people on it, as there will be by 2050? And the answer they came up with was industrial agriculture won't work and genetic engineering won't work and the solution is going to be sustainable, and going to ecological kinds of farming that are based on local environmental conditions that work with local ecosystems available to develop a richer kind of farming technology.

One of the most abused country on earth is Mexico. The marketing spills over the border, and people are persuaded to eat food that's bad for them, more in rich countries than in poor ones. I was traveling the world. What really struck me was the way we engage with food - how it's a global phenomenon - the world becoming more and more disconnected from it.

The opposite of consumption is not thrift - it is generosity.

All of human history is about the going from sudden fat years to the sudden lean years. We've always had good times and bad, and we've had ways of managing the bad times. We have ways of insulating ourselves, making ourselves less sensitive for the bad times by having things like grain stores, for example. Pretty much every civilization that's lasted for any reasonable length of time has some food management principles behind it. But what's been happening over the past thirty years is it's failed - the insurance policy.

A fertilizer bomb that kills hundreds in Oklahoma. Fuel-laden civil jets that kill 4000 in New York. A sanctions policy that kills one and a half million in Iraq. A trade policy that immiserates continents. You can make a bomb out of anything. The ones on paper hurt the most.

Right now you're seeing more and more families reporting that they are skipping meals. They're having to give up meat. Mothers are foregoing food so their kids can have something. People are growing their own vegetables, not because they've gone organic, but because it's one of the few assured sources of food they have. For low-income Americans food is costly right now. The price of food has been going up, and wages haven't. This puts working Americans in a real bind. The fact that the mainstream media hasn't reported it doesn't mean that it's not happening.

By the end of the 1960s, the United States owned more than half of the Indian rupee money supply, and that had been acquired through food aid. So I think it's very interesting to see the very long history of how sovereignty and food go together. When some countries remove another country's ability to feed itself, it is a very powerful tool. Imperialist countries, like the United Kingdom, like the United States, have used it for centuries.