Sorry this is a separate post but I decided to add a couple of additional quotes from the SciAm story on dioxin contamination in animal products. It's just a bit more ammo for us Vegans :-) Enjoy your toxic burgers guys! "Dioxins are a family of persistent organic pollutants that are global in reach and persistent in the environment. Once dioxins find their way into the food web, they tend to stay there accumulating in fats, and slowly making their up way to us. The U.S. Environmental Protection Agency estimates that food of animal origin contributes to about 80 percent of our overall exposure... Long-term exposure is linked to impaired immune systems, nervous systems, endocrine systems and reproductive functions. (More on the harmful health effects of dioxin exposure.)"