Why should the Botswana government, whose record is otherwise impressive, choose to damage itself in the eyes of the world like this?
Some of it seems almost personal. President Festus Mogai is a charming and intelligent man, but he has a particular hang-up about the Bushmen - "Stone-Age creatures", he once called them.
He believes they do not belong in a modern, go-ahead state, and should be forced to integrate into Botswanan society.
And then there are the diamonds.
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Oh. The diamonds.