Like many, I’ve always been a bit baffled by the story of the rise of Nazism. The Germans I’ve met have appeared to be human beings like any other: in no signal way a different breed from my own countrymen.

Yet these are the great-grandchildren, grandchildren and children of a generation that was taken in by Adolf Hitler; or, worse, carried him forward; who supported (many of them) the Nazis; who knew or guessed what was happening to Jews, homosexuals and other minorities; who must either have turned a blind eye or positively encouraged what was happening.