How an academic gets himself in trouble

Always on the outlook for interesting Chinese speakers for Chinabiz Speakers on hot topics like the environment, I stumbled upon this dispatch by Beijing Newspeak. It found an article in the unlinkable South China Morning Post quoting Zheng Binghui, director of the Chinese Research Academy of Environmental Sciences.
Zheng spoke in English at an international meeting in Wuhan and details how strongly polluted China's water resources are. The SCMP:

Dr Zheng said nearly half of all urban drinking water sources failed to meet national standards in 1981, and, in 1998, the failure rate was more than 83 per cent, according to studies carried out by his institute.
Their latest survey suggests more than 450 drinking water sources in key national environmental protection cities could not meet the standards, a number six times higher than the official figure. But these results have not been made available to the mainland public.
“If we release these figures to the public, there will be total havoc … The figures we reported to the central government are classified,” he said. “There is only one correct figure you and Xinhua can report, and that is the official figure.”

That is the kind of speakers we want to have, but something tells me that Zheng might not be available for a while.