This footage is allowing the entire world to take a personal peak of the evil that exists in China, specifically the populous province of Guangdong, with a permanent population of nearly 80 million. You may have to open a youtube account in order to view. Take your time; read the comments, as there are many Chinese online actively defending their people.
http://www.youtube.com/watch?feature=player_embedded&v=wo0_Yup17yc&has_verified=1
Research shows that when there are more people around you are less likely yo get helped. There was a case of a snobs stabbed to death on day light. There were 32 witnesses bit none call the police. This is a topic in psychology.