I just googled it, and the only story I found was the one exerpted from in the original post (the article from the NY Sun). While I'm not discounting the Sun (not being from New York, I have no idea how accurate their reporting tends to be), I would be more confident if I had been able to find another source of the story. Also, the author of the story seems a little uninformed - after all, rationing is not unthinkable in the USA - it happened during WW2, so within living memory (not mine, but some peoples')
After reading the article, it sounds more like something that happens a fair amount - a grocery store limiting the amount any one person can buy of an item, just so there's more to go around. Maybe that's unusual, but not in my experience. I wish I had a dollar for every time I heard a Kroger commercial that said "X on sale for Y, limit 5".
I'm not saying rationing won't happen. (I heard just tonight that now in the Phillipines, hoarding is a crime punishable by life imprisonment, based on food shortages there. Wow.) I would say that our first step would maybe be to limit the amount of food we export (which is scary, because millions of people rely on the food we provide) and only then would we seriously ration.
Just my 2 cents.
Michigander Fan