{"topic": "3M knew for 50 years firefighting foam was toxic Australia PFAS lawsuit", "url": "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", "created_at": 1787147112051, "request_id": "deepdive-1787147112051"}