“Apolitical”—or being disinterested and uninvolved in politics—is a naïve, anachronistic description of the stance of regulatory agencies these days. Instead, critics argue that agencies are rocked by political interference fomented in backrooms rather than being “apolitical.” But it is too early to give up on the foundational vision that agencies are delegated substantial authority by Congress to make objective, science-based decisions to protect public health, worker and consumer safety, and the environment, among other goals Americans hold dear. And, as obscure as the debate over mass comment policy may seem, it has a significant role to play in that revival. The public is ambivalent about political interference, whether it comes from ...