Thanks to Jonathan Latham of the Bioscience Resource Project for advice to check out the web pages of Professor Phil Howard at Michigan State University. Professor Howard, who I do not know but can’t wait to meet, has put together some terrific cartoons of how food systems work. Examples: who owns what in organic foods and the chain of distribution of spinach contaminated with E. coli O157:H7 in 2006. This last is especially useful, given the sharp increase in foodborne illnesses due to leafy greens. I fully intend to plagiarize.