Was anybody else as surprised as I was to see the Our Father and the Ave Maria sung one after the other at the National Memorial Day Concert on the Mall on Sunday night? I have been to the concert half a dozen times, and watched nearly all the other 8 (it's 14 years old) and cannot recall such a religious display, even last year, 8 months after 9/11. It's especially remarkable considering that the show is produced by PBS, and they retain substantial control over its content.