 But, according to "Der Spiegel", the authorities failed to act on the tip, and had never acknowledged it in the following 40 years.The magazine said that this was only part of a 40-year cover-up by German authorities of the mishandling of its response to the massacre.On Monday evening, 4 September, the Israeli athletes enjoyed a night out, watching a performance of "Fiddler on the Roof" and dining with the star of the play, Israeli actor Shmuel Rodensky, before returning to the Olympic Village.