A controversial exhibition of the art collection of Friedrich Christian Flick was opened in Berlin last night in the presence of German Chancellor Gerhard Schröder and other dignitaries. Mr Flick is the heir to Friedrich Flick who during World War II amassed a fortune by supporting the Nazis and employing forced labor. There protests outside the exhibition by former slave laborers and others. Flick has come under fire for failing to pay into compensation funds for victims, with some Nazi victims' groups saying "blood money" had financed his collection.. Inside, Schröder defended Flick saying that he personally had nothing to do with his family's war crimes. But he added: "However, the name Flick bears the weight of history and of memory", and Friedrich Christian Flick had inherited a "duty of historical responsibility."