The government in China is creating a marriage database, which it hopes will be a useful tool to expose cheaters.  As the wealth in the country has exploded, it has created a culture of secret mistresses and second wives, even though bigamy in China is illegal.

According to a recent report, Beijing and Shanghai will be among the first places to put a marriage database online this year. The plan is to have records for all of China online by 2015.

I am not sure every city in the USA would need this database.  The small town where I live if I want to know any dirt on anyone I go to my hairdresser!   But, I can see how this would be helpful where everyone doesn't know everyone.