Food, not so glorious food

Available for over a year

What can a lunch at the canteen in the BBC's World Service's headquarters at Bush House in London tell us about the iniquities of world food production and consumption? Quite a lot, it turns out. Tim Lang, the world's only professor of Food Policy, and Knox Chitiyo, Africa fellow at the foreign policy think tank Chatham House, join Justin Rowlatt for a meal to discuss the politics and economics of world food. Plus, do we drive innovation or does innovation drive us?