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Another day, another Supreme Court decision expanding gun rights. Except this one kind of makes some sense—and even doubles as a blow against the federal government’s long-standing war on drugs.

SCOTUS narrowed a federal law, passed in 1968 after the assassinations of Martin Luther King Jr. and Robert F. Kennedy, that banned drug users from having guns. A Texas gun owner named Ali Hemani, prosecuted after he admitted to regularly using marijuana, had challenged the law. The justices sided with Hemani, ruling that the law unfairly conflated recreational drug users with dangerous addicts.

That … actually sounds reasonable? 

The justices would agree with you. Unlike other big rulings this term, today’s was unanimous. Neil Gorsuch, who authored the decision, noted that the 1968 law’s broad scope—“an unlawful user of or addicted to any controlled substance”—could easily encompass a gun owner who takes unprescribed Ambien or a muncher of the occasional weed gummy. Gorsuch also described it as a “narrow” ruling. SCOTUS didn’t bar the government from stripping guns from drug users who........

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