Artist Miriam Cahn is asking to buy her art back from the collection of Kunsthaus Zurich after the museum hung more than 200 works from the Bührle Collection, which was purchased using money made by selling arms to the Nazis. The Jewish artist has offered the original price paid for her works in an open letter condemning the museum’s decision to collaborate with the collection and display it in October. Georg Bührle was a businessman who made the majority of his wealth through selling arms to Germany during and following World War II. The Bührle collection has said that none...