I don't think the FDA page is pre-rationing those substances. The United States, largely, does this on its own through economic activity because doing it throug

I don't think the FDA page is pre-rationing those substances. The United States, largely, does this on its own through economic activity because doing it through policy would be controversial, as you've shown. You would know these as Strategic National Stockpiles: https://www.cfr.org/backgrounder/state-us-strategic-stockpiles https://www.cfr.org/backgrounder/state-us-strategic-stockpil...