Malcolm Muggeridge describes “fact-finding” tourists to Stalin’s Soviet Union in The Thirties (1940):

Their delight in all they saw and were told, and the expression they gave to this delight, constitute unquestionably one of the wonders of our age. There were earnest advocates of the humane killing of cattle who looked up at the massive headquarters of the Ogpu with tears of gratitude in their eyes, earnest advocates of proportional representation who eagerly assented when the necessity for a Dictatorship of the Proletariat was explained to them, earnest clergymen who walked reverently through anti-God museums and reverently turned the pages of atheistic literature, earnest pacifists who watched delightedly tanks rattle across the Red Square and bombing planes darken the sky, earnest town-planning specialists who stood outside overcrowded ramshackle tenements and muttered: “If only we had something like this in England!” The almost unbelievable credulity of these mostly university-educated tourists astonished even Soviet officials used to handling foreign visitors.