We remember Herbert Zipper, a Viennese conductor who formed the Dachau Orchestra. He died Monday at the age of 92. Linda talks with Paul Cummins, who wrote Mr. Zipper's biography. Mr. Zipper was first imprisoned by the Nazis at Dachau, then later at Buchenwald. He composed "Dachau Song," a resistance song that spread from camp to camp. After the war Mr. Zipper settled in the U-S and continued to teach music, especially to inner-city children.