Here is an issue that is highly politicized, although I can't for the life of me remmeber who is on whcih side: halogenated belts for coal mines.
Coal mines produce coal dust, which is flammable. Very much so. Coal is often moved on conveyor belts from place to place in the mines. The belt material is naturally flammable which is not good. You can halogenate (I think with bromine) the material, and that makes it much harder to ignite. But if it manages to ignite, now it produces nasty gasses.
There is a - or at least was - a big political battle about whether these should be mandatory or forbidden. (It had to be one or the other

) and I don't remember who won, or even (as I said) how the sides were drawn.
There is no "scientifically correct" answer. There isn't even a "side of safety". It;s a question of whether one wants more, less serious accidents or fewer, more serious accidents, when the pulic's position is "I don't want
any accidents - but I want affordable electricity). Further, even if we knew which option was less risky, the risk falls on different people. This is a political decision. No "science council" can decide.