+ Video transcript Video/Image Voiceover/Audio The Connection Between Burn Pits and Lung Cancer Animation: An open-air burn pit with people tossing different things into it - a biohazard container, weapons, chemicals, supplies. Pan to a military base nearby showing where servicemen and women live. For decades, the U.S. military used burn pits to dispose of waste during deployments. These open-air fires burned everything from weapons and fuel to plastics, chemicals — and even human waste. Burn pits were often located close to where service members lived and worked. 3.5 millio...