Another important fact. China has everything to lose from cooperation and nothing to gain. An unfortunate reality in geopolitics is to give no control to othe

Another important fact. China has everything to lose from cooperation and nothing to gain. An unfortunate reality in geopolitics is to give no control to other countries of your own fate. If they were to grant access and attempt to be completely forthcoming, how are they to know that some group wouldn't attempt to fabricate evidence or muddy the waters further.