Government doesn't want X to be said about it, and thus pressures/censors company Y to stop it.

(X = "Anti-Communist sentiment" or "War crimes") (Y = "Google" or "Visa, Mastercard, Amazon, Wikileaks... etc")

Not a huge noticeable difference.

The point I was trying to make, is everyone is quick to taint a discussion on china with words like "Dictatorship", when in fact, china isn't (You know they can vote!?), and all the 'evidence' of them being one are scenarios played out in all countries.