They pretend to be hostile towards North Korea's actions but they actually support NK. They are worse than North Korea. North Korea executes around 30 people a year. China executes over 4000. They hack into Google and other companies and gather information about anyone who opposes them to quietly dispose of them. They secretly try to sabotage the American economy and military and use stolen technology to build their own economy and military. Their propaganda through the news agencies and "paid commenters" on the internet is worse than that of North Korea. Their censorship of the internet is also almost unmatched by any country in the world, and their civil rights violations are arguably worse than Hitler's Germany.
For further reading:
http://en.wikipedia.org/wiki/Propaganda_in_the_People%27s_Republic_of_China
http://en.wikipedia.org/wiki/Operation_Aurora
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wikipedia