Here is an excellent story about radon in Iowa. Even with heroes like Gail Orcutt and Dr Field, public policy changes are difficult and require a lot of commitment. I'm happy to see they spent several minutes on the story instead of the normal 1-2 minutes.

https://www.weareiowa.com/article/news/health/radon-in-iowa-mitigation-environmental-protection-agency-public-health-maria-steele-richard-deming-bill-field-gail-orcutt-lung-cancer/524-0433e7e8-576f-48e8-87fb-3b083cec1280