The Landmarks Preservation Commission on Tuesday granted landmark status to the interior of the main post office in the Bronx.  The exterior was designated a landmark by the commission in 1976. But the interior remained unprotected, and preservationists worried about the fate of famous 1930s murals by Ben Shahn and Bernarda Bryson Shahn as the United States Postal Service intends to cease operations there and sell the building.  “The lobby, which was completed during the depths of the Great Depression, remains a monument to the ideals of the New Deal-era public works programs to this day,” Mr. Tierney said.  Read more.