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For the last three decades, Britain has been busting a gut to advertise itself to tourists as a land of plenty for foreigners, a message that reached its highest volume during last summer's Olympic Games. But foreigners, welcome as tourists, are now to be told they are not so welcome as immigrants. Unless they are billionaires or wish to purchase a football club, we'd rather foreigners remain foreigners. One minister was quoted as saying that the message of the ads would be simply "to correct the impression that the streets are paved with gold."