The biggest thing that focusing on the IARC classification misses is this: the dose makes the poison. I will gladly have a gram of a known carcinogen if I know

The biggest thing that focusing on the IARC classification misses is this: the dose makes the poison. I will gladly have a gram of a known carcinogen if I know that I'll need 10 tons of the substance to increase my risk of cancer substantially. We simply can't know anything about this without knowing 1) what we're exposed to (realistically), and 2) what the actual risks are. Given the observed results, it evidently can't be too terrible.