Pigs eat grass if they are very hungry, but they can't use it as a regular source of food.
World War II is the greatest drama in human history, the biggest war ever and a true battle of good and evil. I imagine writers will continue to get stories from it, and readers will continue to love them, for many more years.
I'd be interested to read Gull's paper on it, and I wish Alan would put it in somewhere. It gives him a relevance to our times, which he doesn't otherwise have. Gull, I mean, not Alan.