The harm doesn't start when the proof of harm is found.
Every new thing that has never been seen before has no proof that it does harm until we catch it in the act. Once in a while someone invents nerve agents and kills themselves in the process giving us instant feedback, , but we had whole generations licking radium paint and putting lead in their wine to sweeten it. Cigarettes? No proof of harm even though the harm was obvious.
How many times are we gonna go around this merry go round before we put our foot out?
