"Chernobyl, on the other hand, was not only a marvel of Russian engineering (one theory is that it blew up when the donkey working the treadmill had a heart attack and died)"

Heh-heh-heh... I remember, way back in the 1970s, the satirical magazine National Lampoon had an article about "Soviet Sex Toys" -- including вибраторы-фаллоимитаторы that were diesel-powered and made of concrete!! (I just did a Google Image search but couldn't find a scan of the article, sorry...) Anyway, we in America always wanted to believe that Soviet technology was very primitive, because the alternative was too scary.

PS. Naturally, in the 1970s I was much too young to read such material -- but when I went to college in the early 1990s, the university library actually had a rather complete collection of National Lampoon, covering almost 20 years!