The Metropolitan Museum hopes to get the major part of Shelby White’s collection of antiquities. But an Italian “investigation into Ms. White’s collection seems to keep expanding. The stock of old evidence that Italian investigators are using becomes more dangerous to Ms. White’s collection as more of her pieces receive widespread notice. That is sure to happen as more than a dozen pieces in her collection—which has been admired by curators as one of the most impressive in the world, even as it has been disparaged by archaeologists as plundered treasure without provenance—are displayed at the Met, where she is a trustee.”