WAN/VPN lnks to China

Kind of an off-beat question: I read an article recently that all
Internet traffic leaving and entering China is inspected by Cisco
routers for illegal and anti-government content (as determined by the
government). For anyone connecting to remote offices in mainland China,
does this traffic inspection by the government affect performance of
WAN or VPN links to your remote sites?
Telecom, Cabling and VoIP continues...