Henninger on government attempts to control guns...

A real-world look at where killers and other career criminals get guns emerged in October when the New York Police Department put on display 154 guns—most of them bizarre-looking handguns—that it obtained in a high-risk sting operation in Brooklyn. Incidentally, these police antigun efforts are about the only program that research has identified as effective.

Buying or possessing a gun legally in New York City is so difficult that it is a non-subject for most New Yorkers. So where did the NYPD get these guns? A Mr. Kerwin "Trini" Gobin allegedly sold undercover cops 87 of the weapons, including a Sten machine gun able to fire 550 rounds per minute. Machine guns have been illegal since the 1930s. But not in Trini Gobin's world. The illicit firearms market is global. Canada, Australia and New Zealand are all wrestling with how to control black-market gun traffic after recent outbreaks of firearm violence, much of it gang-related.