Inconveniently squeezed into a late Friday afternoon slot on the Food Marketing Institute’s 2001 Supermarket Food Safety Conference last month in New Orleans was a one-hour session dubbed by the organizers, “Packaging: in Search of the Next Dimension.” The original intent was to portray packaging and its new technologies as complementary protectors of food against mainstream microbial spoilage and pathogens. Discussions of Listeria, ionizing radiation, federal regulation, tracing for recalls, sa…