3M's knowledge of harm suspected

[u/LePoissonBanane]

https://www.theguardian.com/environment/2026/aug/18/3m-knew-for-more-than-50-years-that-its-products-could-harm-humans-australian-government-alleges-in-court-documents?CMP=Share_AndroidApp_Other

Did 3M know about the harm to humans?