It is indeed up for debate. I would like to see sources backing that up. I can find sources saying just the opposite. I think it comes down to what you mean

It is indeed up for debate. I would like to see sources backing that up. I can find sources saying just the opposite. I think it comes down to what you mean by safe. Safer for humans in the immediate area of an accident, safer for the environment, safer for humans as a whole. I would indeed argue that is loses in the later two. I agree with the rest of your comments.