On a side note, though related, I think it's a mistake to stock up on cash, gold, etc. When they tank the food supply, those will have little value. You can't eat gold, and a loaf of bread will be worth more. Plus the government can (and has) outlawed gold, whereas the cash will probably become worthless. If anything, I would stock supplies. If there will be anything resembling a currency after TSHTF, it might just be cigarettes. They're pretty compact, have long shelf life, and you'd probably be able to trade them for stuff of much higher intrinsic value when they become hard to acquire. Of course, the government could try to seize your supplies too, so there may be some creative ways to hide them, but at that point there's no harm in having tried, just in case.