We have an omnipresence of antimicrobial chemicals. We cannot escape them anymore. They are in our water, in our air, in our soil, in our food. They are in the wildlife and they are in us. But ironically, they are much more effective in killing things other than microorganisms.
I love reading government memos because the world is an unclassifiable place, but the people that write these memos have to try to classify it anyway, and the results get weird. You get these classification oddities, these regulatory platypuses.