Even as the flamboyant Zahi Hawass is charming Dallas with the Tut razzle-dazzle, the Egyptian antiquities czar is baring his teeth at the St. Louis Art Museum, which has somehow acquired the burial mask of Ka Nefer Nefer; last time the Egyptians looked (1959), it was tucked safely in a warehouse south of Giza. Enter interpol, the Department of Homeland Security, innocence, outrage, threats and proclamations, etc . . . it’s better than a circus!