I see in a report from Paris that someone is threatening to sue Jeff Koons for copyright infringement over his depiction of a pig and seminude mannequin. Koons has been accused of infringment before, three times successfully. He has also accused others of copyright violation of his balloon dog. Here in New York I was walking across town the other day and took a photo of these gigantic holiday decorations opposite Radio City Music Hall. So what makes a Koons better than or different from this display, except that these baubles are not meant satirically — unless the thought occurs to you, as it did to me, that you could take them for humongous hand grenades in disguise. Or maybe they’re a Koons in disguise.