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Switzerland to open secret files on Auschwitz 'Angel of Death' Mengele

Swiss authorities will grant historians access after decades of secrecy, as the files may clarify whether the Nazi doctor passed through the country.

  • The Swiss Federal Intelligence Service announced it will open long-sealed files on Nazi war criminal Josef Mengele, though officials withheld a specific release date for documents previously restricted until 2071.
  • Known as the 'Angel of Death,' Mengele sent as many as 400,000 people to their deaths at Auschwitz; despite fleeing to South America after World War Two, persistent rumors suggest he visited Switzerland in 1961.
  • Historian Gérard Wettstein successfully challenged the secrecy in court, raising 18,000 Swiss francs through crowdfunding to argue that keeping files sealed fueled conspiracy theories.
  • Federal Intelligence Service officials stated access remains subject to undefined 'conditions and requirements,' prompting Wettstein to warn, 'I fear we will get a file that is more black than transparent.'
  • Historians, including Sacha Zala of the Swiss Society for History, suspect the files contain references to foreign intelligence agencies like Mossad rather than evidence of Mengele, suggesting the secrecy reveals Swiss sensitivity.
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27 Articles

Lean Right

The classified files about notorious Nazi criminal Josef Mengele were supposed to be locked away in the archives until 2071. Now Switzerland is turning the tables – and announcing that the documents will be released soon. Perhaps the mystery of Mengele's connection to the Alpine country will finally be solved.

·Stockholm, Sweden
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Lean Right

Historians have long tried to determine whether SS doctor and war criminal Josef Mengele was in Switzerland after the war – and if so, when. Now the Swiss intelligence service has agreed to open its secret archive.

·Copenhagen, Denmark
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Right

The Swiss intelligence service is going to release a large quantity of documents regarding Josef Mengele, the 'angel of death' of Auschwitz. They had been sealed for years. The question now is what they contain.

·Amsterdam, Netherlands (Kingdom of the)
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  • 44% of the sources lean Right
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BBC News broke the news in United Kingdom on Friday, May 15, 2026.
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