An interesting viewpoint here. I say "interesting" I guess to be purposely milquetoast; I largely agree with what Harvey Ussery has to say, but of course, there are boatloads of critiques, glossed-over points, retorts to critiques and counter-critiques to be had, as seems to happen all the time with food. (This is my impression right now of what seems to be the "local-food-backlash", that is, a flurry of academic and popular articles on how local food actually may be worse, from energy efficiency, causing smugness and related moral turpitude, etc. etc. I was flabbergasted when a mathematician shook her head at me when I maintained that, ceteris paribus (all things being equal), local should be more efficient. I think it's pretty much definitionally true that local food is better, all things being equal; a separate question is whether and when they in fact are equal. But I feel like the local critique is as much founded in a backlash as it is in the fact that local is, of course, not an unconditional universally-good free panacea. I still think the science bears out that more local food systems are a better idea, on average, than a far-flung food system. But I digress.)
Worth a read; not necessarily a new argument but a passionately and clearly phrased one, and one that I think I'm on board with (but can't be sure because my mind has been quite hijacked by work for the past several days and is not all with me). Ussery seems like an interesting guy in the Joel Salatin mode (so much so that I was looking askance at his website to see if he shared some of Salatin's more, um, iconoclastic political views); worth looking more into.