In Dickens’ classic “A Christmas Carol,” Scrooge wishes that “every idiot who goes about with ‘Merry Christmas’ on his lips, should be boiled with his own pudding, and buried with a stake of holly through his heart.” Scrooge would make the perfect public-school bureaucrat -- except he’d insist on calling it a holiday pudding, playing “Winter Wonderland” as background music, and doing it all in the name of inclusiveness, sensitivity and church-state separation. In the latest manifestation of what Rabbi Daniel Lapin of Toward Tradition calls “secular fundamentalism,” the South Orange/Mapplewood, New Jersey School District has banned playing the instrumental...