Making people aware that toxic chemicals in our everyday lives can cause cancer has been one of Dr. Samuel Epstein’s main goals. According to his book, “The Politics of Cancer,” the government really won’t step in until there is a public outcry.

Dr. Ronald Glasser talks about his book "The Greatest Battle," which explores cancer and the environmental factors that can cause it. He talks about smoking, food additives and diet, infectious diseases, and germs.