The New Yorker in 1961 on the war crimes trial of Adolph Eichmann, the Nazi operative responsible for organising the transportation of millions of Jews and others to various concentration camps in support of the Nazi’s Final Solution.
Arendt found Eichmann an ordinary, rather bland, bureaucrat, who in her words, was ‘neither perverted nor sadistic’, but ‘terrifyingly normal’. He acted without any motive other than to diligently advance his career in the Nazi bureaucracy. Eichmann was not an amoral monster, she concluded in her study of the case, Eichmann in Jerusalem: A Report on the Banality of Evil(1963). Instead, he performed evil deeds without evil intentions, a fact connected to his ‘thoughtlessness’, a disengagement from the reality of his evil acts. Eichmann ‘never realised what he was doing’ due to an ‘inability… to think from the standpoint of somebody else’. Lacking this particular cognitive ability, he ‘commit[ted] crimes under circumstances that made it well-nigh impossible for him to know or to feel that he [was] doing wrong’.
https://aeon.co/ideas/what-did-hannah-arendt-really-mean-by-the-banality-of-evil