According to the AFP, (via Drudge), China is running out of surnames. For example,
"Current Chinese law states that children are only allowed take the surname from either their mother or father, but the lack of variety means there are now 93 million people in China with the family name Wang."
This of course leads to problems...
"Guan Xihua, a household registration officer with the Beijing public security bureau, said the lack of variety caused trouble in daily life and the new regulation would slash repetition."
Now the Chinese are attempting to solve the problem by combining the surnames of the parents (the husband's and the wife's maiden name). Now we can have the Wangwangs.
(The content of this post has been modified).