On the World in Words podcast, the trials, tribulations and silliness of living in Belgium, where most people define themselves not by nationality but by mother tongue. Also, arrested Chinese artist Ai Weiwei wrote a blog that was, if anything, even more provocative than his art. We hear from his English translator. And the latest children's TV hit in the UK features Jamaican-British musical mice, with dialects that offend English purists.



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