AFTER “the Crunch”—the total collapse of the global economy—trade seized up, the power grid shut down and paper money became worthless. Riots gutted city centres. Looters picked them clean. Americans went back to growing their own food and bartering with their neighbours. Those who had failed to stockpile beans and bullets were soon hungry and defenceless. The “Great Die-Off” hit Florida especially hard. Millions of suntanned retirees died of starvation or chronic diseases after the government stopped paying for their pensions and pills.