 All of the above and so much more. Protecting the medicine that you take, the air that you breathe, the water that you drink, the energy that we use. Pretty much everything under the sun is regulated by a federal agency. And there are some big ones that we all know about, like the EPA. But there are also literally hundreds of smaller ones. And the way that modern governance works is that Congress will pass a law. It'll have some big goal, like reduce the amount of this pollutant in the air.