C.K. in Texas mentioned that there was a PBS mini-series this past summer (available online) about how money gained its importance over time. It was called The Ascent of Money and the fourth episode would be of interest to many SurvivalBlog readers. C.K.'s description: "It talks about the hyperinflation that occurred in Argentina years ago (so bad that ranchers wouldn't bring their cattle to market) and also about the fragile economics of Chinese and US trade."