The USA considers itself strategically at risk by virtue of being an oil importer: but it has a food surplus, so (under a very specific Federal mandate) it turns foodstuff wastefully and large-scale into fuel.
Saudi Arabia considers itself at risk from being an importer of food: but it has an energy surplus, so it desalinates seawater using huge amounts of energy and makes the desert fertile, turning it to food.
If only international trade were more dependable ... (eh, Budgie ?)
Anyhow, with widespread drought in the USA, thoughts are turning urgently to halting the gigantic compulsory conversion of corn into ethanol. This is just one flashpoint among many where the trade-off is food vs fuel: the EU is having second thoughts about bio-fuels in general - and not before time.
Food vs fuel. People riot when they can't get either. Wonder which wins... your views ?