Grains Gone Wild

These days you hear a lot about the world financial crisis. But there's another world crisis under way - and it's hurting a lot more people.

I'm talking about the food crisis. Over the past few years the prices of wheat, corn, rice and other basic foodstuffs have doubled or tripled, with much of the increase taking place just in the last few months. High food prices dismay even relatively well-off Americans - but they're truly devastating in poor countries, where food often accounts for more than half a family's spending.