The media have been telling us to watch the gun-control case now before the U.S. Supreme Court, where we await a decision about Americans' Second Amendment rights. But the 2nd U.S. Circuit Court of Appeals just handed down an equally important gun decision that has additional implications against judicial supremacy.

The court, which convenes in New York City, shot down the longtime liberal dream of achieving gun control by suing gun manufacturers for crimes committed by firearms. In a remarkable decision, this federal appellate court dismissed City of New York v. Beretta U.S.A. Corp. and protected gun corporations against frivolous lawsuits in state and federal courts.

The lawsuit was brought by the City of New York in order to seek control over gun suppliers. At stake was not merely money but also whether liberals would obtain from judicial activists the gun control that the liberals could not get from legislatures.

This decision provides a road map for how Congress should withdraw jurisdiction from judicial supremacists in other fields, too. The decision is a sweeping affirmation of Congress' power to stop future and pending lawsuits in federal and state courts.

This ruling broke an alarming trend of judicial supremacy and stopped outrageous lawsuits that tried to impede the sale of guns because of illegal acts committed by New York City residents and others. Billionaire Mayor Michael Bloomberg was left empty-handed in his attempt to sue businesses concerning crimes committed by residents of his city.

The lawsuit cited the harm from gun sales while ignoring evidence that the benefits far outweigh the harm. The trial court sided with Bloomberg, but the appellate court said "no" and put an end to the nonsense.

Congress had legislated the basis for this decision by passing the Protection of Lawful Commerce in Arms Act in 2005. The PLCAA protects against a "qualified civil liability action," defined broadly to include almost any lawsuit brought against a gun manufacturer or seller based on "the criminal or unlawful misuse" of a firearm distributed in interstate commerce. On the day it was signed into law by President George W. Bush, gun manufacturers moved to dismiss this case, and the 2nd U.S. Circuit Court of Appeals has now enforced the law.

The appellate court rejected an argument that this law denied access to the courts. New York City can and does sue all the time, but Congress properly rejected the ridiculous notion that the city could sue businesses over a typically beneficial product that was later used illegally.

Should General Motors Corp. and Ford Motor Co. be held liable for crimes committed by drunk drivers, or baseball bat suppliers be sued for criminal beatings inflicted with their products? Of course not. It was an outrage that courts even entertained such actions against gun manufacturers and suppliers.

If Congress had not effectively withdrawn jurisdiction, gun manufacturers would be reluctant to produce guns and many might go out of business. This intimidation would deter the lawful sale of guns. Continued...