That's a strange verbal tic that's always bothered me. Why do people bother adding the name of the country when they're referring to such famous cities? Who would assume they were referring to Paris, Texas or London, Connecticut? Certain cities need no qualification - London, Paris, Rome, New York, Moscow, Berlin, etc.
For that matter, why do some people refer to Jewish rabbis instead of just rabbis?
And while we're at it ... I can't think of another similar grumble. This post seems to need a third one, though.