Casden is a loyal backer of Jewish causes, including Simon Wiesenthal Center's Museum of Tolerance.
One example is the German leftist terrorist group "Revolutionary Cells" whose members participated in hijacking the Air France Flight 139 in 1976 (Operation Entebbe) as well as the planned assassination of the head of the German Jewish community, Heinz Galinski and famous Nazi hunter Simon Wiesenthal.
The Kreisky–Peter–Wiesenthal affair was a political and personal feud in the 1970s fought between the then Austrian chancellor Bruno Kreisky and the Nazi hunter Simon Wiesenthal arising from Kreisky's ministerial appointments and the SS past of Freedom Party leader Friedrich Peter, which had been revealed by Wiesenthal.
He was honored as the featured illustrator for the 2003 Los Angeles Times Festival of Books, has been included in the Simon Wiesenthal Museum of Tolerance "Every Picture Tells a Story" traveling exhibition, had a major solo exhibition in 2005/2006 at the Delaware Art Museum in Wilmington, Delaware, and is an artist member of the Society of Illustrators in New York City.
In the documentary "I have Never Forgotten You" about famed Nazi hunter Simon Wiesenthal, Sher is shown criticizing Wiesenthal with his statement, "There were and still remain today alive, many people who personally suffered at the hands of Joseph Mengele and to hold out hope to them, and these people held out hope, that their tormenter, their torturer, this mass murderer would be brought to justice, when the information was not accurate, I think is cruel."
Lampe began the 2010 Legislative Session with legislation honoring famed Jewish civil rights leader Simon Wiesenthal.
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So far, the institutions that have not accepted (or haven't expressed their opinion on the matter) Žerjavić's and Kočović's results of investigation include the Yad Vashem memorial and the Simon Wiesenthal center.
This provoked further criticism, with Efraim Zuroff of the Simon Wiesenthal Center saying that Haider's views reflected "the political atmosphere which exists in Austria and which in certain circles is extremely sympathetic to suspected Nazi war criminals".