From Race for the Cure to breaking news stories about cancer research, most of what we hear about cancer focuses on finding a cure for the disease. What about cancer prevention? What if we could determine what causes cancer in dogs, avoid these causes, and prevent cancer altogether?

For the first time in more than 40 years, the President's Cancer Panel addressed the role of environmental contamination in cancer incidence. The report opens with the observation that "...the true burden of environmentally induced cancer has been grossly underestimated."...