Was Unity Mitford really Adolf Hitler's English girlfriend?

A Mail podcast that debuted yesterday reveals Unity's own words at great length, allowing listeners to make up their own minds about her scandalous life.
Set across four episodes, Hitler's English Girlfriend: The Secret Diary of Unity Mitford explores every salacious detail recorded by the debutante.
It also delves into the horrifying hatred of Jews that Unity expressed repeatedly. Her words are, as our Literary Editor says, 'unrelentingly and chillingly anti-Semitic.'
And to quell any doubts about its authenticity, the diary has undergone rigorous testing by a forensic science laboratory.