We could be entirely self-sufficient in wheat etc, if we chose to be. Our current reliance on imports is just the free market at work - more money in dairy, and

We could be entirely self-sufficient in wheat etc, if we chose to be. Our current reliance on imports is just the free market at work - more money in dairy, and we're right next to a country that grows wheat far more efficiently. I've watched quite a few wheat fields I grew up near become dairy pasture.