p(image-right). !http://newsinfo.nd.edu/assets/70246/food_contamination_network_350.jpg(Food contamination network)! Notre Dame network physicists "Mária Ercsey-Ravasz":http://icensa.nd.edu/ercsey.shtml and "Zoltán Toroczkai":http://obelix.phys.nd.edu/~toro/ of the "Interdisciplinary Center for Network Science...