I didn't see any problem with the Chinese fans ...
.. in the Venus Williams - Shaui Peng match. Venus certainly double-faulted a couple times, and made more than a few unforced errors, and I didn't here anything untoward from the crowd. They certainly weren't cheering Venus' errors, and Shaui Peng is Chinese #1.
That doesn't prove no one misbehaved in other matches, but there were certainly Chinese fans there, and they displayed the usual level of decorum for tennis fans. That could be, I admit, that they just happen to like Venus more than most non-Chinese players, but I have no evidence to support that. (The Chinese WERE, apparently, quite taken with Serena while she was winning Beijing.) Likelier, bad behavoiur was the province of a few, and they chose not to buy the (possibly more expensive) Rod Laver ticket.
Proud to be an American
Not blind. Not uninformed. We are party to atrocities. But the response of the world after 9/11 is worth noting. Even our most dire enemies offered aid. We should all be so lucky.