Google in China fails ‘Do No Evil’ Rule

Although Google have always prided themselves on their Do No Evil mantra, they have blatantly ignored that policy when dealing with their largest potential audience – China. Just compare the Google china result for tiananmen with the Western version of th esame search. Notice anything different?
I’d also like to know where this FAQ went to?
Why is there one bad google for China and one good google for the rest of the world?