IN THE CLASSIC STAR TREK episode "I, Mudd," Captain Kirk short-circuits a dangerous android by talking circles around it. The Bush Justice Department has accomplished something similar, driving the gun-ban movement into a full-fledged system meltdown, with nothing more than a few, well-chosen words. Solicitor General Theodore Olson filed two briefs with the Supreme Court Monday, which stated, among other things, that the Second Amendment guarantees to all citizens the right "to possess and bear their own firearms." No big deal, most Americans would say. We always knew we had a right to keep and bear arms. But the gun-ban...