Where prisoners are forced to play computer games?

In worlds major countries there is an existing problem of money trading within online games. Virtual money is earned through "Gold farms", where people sit everyday and try to earn as much virtual money as possible. Most of the "Gold farms" are located in China - only in 2005 it was expected that there are around 100,000 people. Additionally, in many Chinese prisons Security personnel and heads of prisons force their inmates to play online computer games, through which they get illegal income.

SOURCE: http://en.wikipedia.org/wiki/Gold_farming
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