Then why mention asbestos? Even limiting it to dental amalgam, p-e-w says there is a lesson for future regulatory action. What is that lesson? I don't recall

Then why mention asbestos? Even limiting it to dental amalgam, p-e-w says there is a lesson for future regulatory action. What is that lesson? I don't recall the government ever said amalgam fillings should be removed, and the FDA now certainly says to leave them in: https://www.fda.gov/medical-devices/dental-devices/dental-amalgam-fillings#removed https://www.fda.gov/medical-devices/dental-devices/dental-am... https://en.wikipedia.org/wiki/Dental_amalgam_controversy https://en.wikipedia.org/wiki/Dental_amalgam_controversy makes it seem like much of the controversy came from people "using pseudoscience to scare patients into more lucrative treatment options", not the government. The major new regulations in the US seems to be installing filters at the dentists' to keep mercury waste out of the public sewer system. I therefore don't see the lesson from regulating CFCs, nor from asbestos, nor from dental amalgam.