BRUSSELS — How far should Brussels go in restricting dangerous PFAS chemicals? Not too far, says the European Union's chemical watchdog. On Thursday, the European Chemicals Agency's socioeconomic committee issued draft advice that so-called forever chemicals should continue to be permitted in a range of processes until viable alternatives are found. Medical devices such as pacemakers and catheters, heat pumps, air conditioners and car parts would all be allowed to contain forever chemicals