The week before Thanksgiving, my favorite American holiday, I visited Poland to help the publisher of my books there, Credo, celebrate their tenth anniversary. Warsaw is a lovely city, situated along a broad river. Its main street, now a cobblestone pedestrian mall, winds past baroque churches, a university, the royal palace, and an Old Town of narrow alleys and medieval-style buildings. The visitor quickly learns, however, that these “old” buildings are actually new, rebuilt after the destruction of World War ...