There’s a government agency in Washington whose job is deciding what’s “offensive” and should be kept off broadcast TV and radio—the FCC. Its policy is terribly, dangerously flexible. If material has to do with sexuality or excretory functions, it’s “offensive” if the commissioners decide it’s offensive. You don’t have the right to see or hear “offensive” material on broadcast TV. A federal court (including a judge appointed by President Bush) ruled this week that that’s just too vague, “creating a chilling effect that goes beyond the fleeting expletives at issue here.” That ruling is good news for parents, consumers, and…