RE Agatha Christie: I'm too lazy to go downstairs and search, but I'm fairly sure the edition I have is AND THEN THERE WERE NONE -- a U.S.-published paperback. It's definitely not 10 LITTLE NIGGERS! Title changed for the U.S. market, most likely, since that was done to several of her other mysteries for no good reason I could figure (the new "American" title, in most cases, was no better than the original, as far as I could see) -- as a reader, I saw that as sneaky and underhanded, a trick to induce the casual buyer to buy a book he/she had already read, thinking it was new
On politically correct changes to ethnic allusions in children's books, I was a bit distressed when the original text of LITTLE BLACK SAMBO was suppressed. OK, it might be the wrong thing to read to toddlers nowadays, but it is a cultural artifact and therefore should be AVAILABLE. (It didn't even refer to "blacks" in the U.S. sense, but to India-type Indians.) And it really bugs me that we can't get Disney's SONG OF THE SOUTH in video. It is of historical interest; some people might want to watch it even if they don't approve of it.