I worked for USPS. When I saw this title I immediately assumed that China was after the main database which contains information on basically every US citizen.

I worked for USPS. When I saw this title I immediately assumed that China was after the main database which contains information on basically every US citizen. As a developer I had access to some databases and was told that USPS had the third largest database in the world. This was before Facebook, but still, there is a lot to be had other than employee information.