Watch Clip
Why decades-old PFAS is still contaminating Michigan waters
8m 20s
The Defense Department missed a deadline this fall to stop using a toxic firefighting foam that has caused widespread contamination across the country. In the small town of Oscoda, Michigan, a group of citizens has been fighting to hold the Air Force accountable for polluting their waterways. Special correspondent Megan Thompson reports in the first of a two-part series.