Another day, another newspaper story about anti-Semitism in Europe. The good news, I suppose, is that there are at least some newspapers in Europe that are willing to acknowledge the phenomenon. The bad news is that there’s more than enough material to keep the stories coming. The latest report, in the Danish daily Jyllands-Posten, is about seventeen-year-old Moran Jacob, a Jewish boy who until recently lived in Nørrebro, a heavily Muslim neighborhood of Copenhagen. Back in January, Jacob agreed to testify at a hearing about anti-Semitism at Copenhagen’s City Hall, where he told about the harassment he’s been subjected to...