The US military's multibillion-dollar PFAS water contamination problem

The U.S. military's use of a firefighting foam, with the intention to save lives, could turn out to have dire consequences for the people who handled it and people who live nearby. PFAS, short for per- or polyfluoroalkyl substances, have seeped into the groundwater and at times spread into drinking water by way of firefighting foam runoff. Now, communities across the country are wondering what PFAS-contaminated water means for their health, their homes and who's responsible to clean it all up.