What we learned from the Knoedler fakes scandal

Are collectors stupid to spend millions of dollars on a work of art without personally investigating its authenticity? This is what Robert Storr, the former dean of Yale University School of Art argues.
Storr was speaking at a panel hosted by Ifar (International Foundation for Art Research) in New York in July about the issues raised by the Knoedler fakes scandal, which resulted in the illustrious New York gallerys closure. Knoedler and its former director claim they were duped by the forgeries