Public relations–wise, the gun-control movement could hardly have a worse champion than CNN’s Piers Morgan. He’s haughty, he’s self-righteous, and, worst of all, he’s foreign. For the Second Amendment freaks who see Barack Obama as suspiciously un-American, his government as potentially tyrannical, and themselves as heirs to the gun toters who shot their way to liberty at Lexington and Concord, what better foil than a modern-day gun confiscator who actually is English. For years, American conservatives have been calling American liberals wannabe Europeans. Now, with America witnessing its nastiest culture-war skirmish since Bill Clinton’s impeachment, the man helping to lead...