Didn't see the programme, but I must admit to a degree of disquiet at the strategic shortsightedness we show in allowing the country to become utterly incapable of feeding itself. We live in [relative] peace for the moment, and long may it remain so, but we really should be more prepared for other possibilities.

That is quite beside the thought that the countryside that many of us value so highly is actually a food factory developed over centuries, which can be destroyed by just a few years neglect.