This example shows it wouldn't be an unknown danger. It would be something that experts know about and warn against. That certain cities and countries have al

This example shows it wouldn't be an unknown danger. It would be something that experts know about and warn against. That certain cities and countries have already banned based on expert input. It would be something manufacturers know about and hide info on and actively lie about. It would be something that even after regulatory laggards like the US federal government ban it, is still inflicted on the globally poor and powerless. The recent thing about a pesticide affecting unborn children fits neatly for example.