The Chinese government defends the Tianamen Massacre. They consider the mistakes to be allowing the students to gather in the first place and letting the international media broadcast. They point to Russia's economic meltdown as reason enough for their "wisdom" of keeping the communist system.
Nevertheless, China is not the same as it was 13 years ago. Yes, the government is as brutal as ever. However, people inside the SEZ (Special Economic Zones) have more freedom and wealth than those outside it. The genie is out of the bottle. China will never be able to go back to the same communist system they had 13 years ago.