The Germans announce over the wireless that as the inhabitants of a Czech village called Lidice [...] were guilty of harbouring the assassins of Heydrich, they have shot all the males in the village, sent all the women to concentration camps, sent all the children to be “re-educated”, razed the whole village to the ground and changed its name.
  [...]
  It does not particularly surprise me that people do this kind of thing, nor even that they announce that they are doing them. What does impress me, however, is that other people’s reaction to such happenings is governed solely by the political fashion of the moment. [...] In a little while you will be jeered at if you suggest that the story of Lidice could possibly be true. And yet there the facts are, announced by the Germans themselves and recorded on gramophone discs

In our age of social media, that phenomenon is no longer surprising.