What two lessons did terrorist throughout the world learn from the attack on the israeli athletes at the 1972 munich olympics

Munich massacre, Palestinian terrorist attack on Israeli Olympic team members at the 1972 Summer Games in Munich.

The Munich Games marked the first return of the Olympics to a German city since the 1936 Games in Berlin. Adolf Hitler’s use of those Games as a platform for the propagation of Nazi ideology was roundly criticized, as was the blatant racism and anti-Semitism that characterized the Games. The West German invitation had been extended, in part at least, to offer the world a contrast to the horrifying spectacle of Berlin.

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the answer is jerusalem