HN mods sometimes lowercase Nasa by stylistic guidelines, even though I wish they didn’t, so that would be PFAS and Epa. But a better headline would be, “Berke

HN mods sometimes lowercase Nasa by stylistic guidelines, even though I wish they didn’t, so that would be PFAS and Epa. But a better headline would be, “Berkey sues EPA over classifying silver-containing water filters are a pesticide”. The PFAS thing is marketing irrelevance to the lawsuit in question, which is over the silver content of the filter. In any case, you can email the mods and suggest an altered title, and they may well accept it and update the post.