Marcus Stern, the Washington, D.C. reporter for Copley News Service who broke the Pulitzer Prize-winning story on Duke Cunningham's corruption, is leaving Copley at the end of the year, according to several very knowledgeable inside sources. Also leaving is Gordon Smith, who covered Los Angeles. The L.A. bureau is reportedly closing. The Washington bureau will be under the thumb of the U-T. The Sacramento and Mexico bureaus will remain open.