TO GO WITH HOLOCAUST OPERA STORY BY GEORGE JAHN - Katerina Beranova and Silke Doerner, from left, perform during the holocaust opera 'Spiegelgrund ' by Austrian composer Peter Androsch in the imperial council hall of the Austrian parliament in Vienna, Friday, Jan. 25, 2013. Androsch goes where few others have dared, with an opera depicting how Nazis methodically killed mentally or physically deficient children. The performance premieres to mark International Holocaust Day in the parliament of Austria, a nation still atoning for its role in atrocities committed by the Nazis. (AP Photo/Ronald Zak)
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