In March, the Supreme Court heard a case about whether doctors should be held liable for prescribing opioids in good faith. Ruan v. United States is about where sound medical judgment ends and criminal liability begins. In a nation with an opioid crisis and doctors running what are known as "pill mills," doctors in Alabama were convicted of a crime based on a ruling that did not allow them to claim a defense of "good‐faith" if they were prescribing opioids under the belief that it was medically the right thing to do.