On 5th February 2014 Stop the War coalition published an article on the 1972 massacre of Israeli athletes at the Munich Olympics.
The author was journalist/polemicist Alison Weir, who founded the “If Americans Knew” organisation, which argues that American support for Israel is as a result of domination of US media and politics by Jewish interests. A number of Jewish groups now regard this organisation as an openly antisemitic grouping.
Alison Weir regularly appears on the Free American radio show, which is hosted by white supremacist Clay Douglas. She has alleged that Israel regularly harvests organs from murdered Palestinians, both in Israeli prisons and during harvesting raids into Gaza, a crude version of the blood libel antisemitic trope that Jews use the blood of murdered gentiles for their sustenance.
In her piece on Munich, Weir states that whilst some hostages were “accidentally killed” by the Palestinian Black September terrorists, German Special Forces killed the rest. She claims that the terrorists had no plans to harm the Israeli athletes and that attempted rescue by German forces was “botched & unnecessary” and used as a pre-planned pretext for Israeli raids against Syria and Lebanon.
So – Stop the War published a conspiracy theory about the massacre of Jewish Israeli Olympic athletes, written by a discredited fringe activist known for her use of antisemitic tropes.