The search behemoth accuses the communist state of tampering with, but not completely blocking, users of Gmail in China.

The Guardian reports that China and Google (GOOG) are at it again.  Google is now accusing China of  tampering with access to Gmail from within China. Customers and advertisers have increasingly been complaining to Google about their Gmail service in the past month. Attempts by users to send messages, mark messages as unread and use other services have caused issues that Google can't account for.  Google concludes it must be China

"Relating to Google there is no issue on our side. We have checked extensively. This is a government blockage carefully designed to look like the problem is with Gmail," said a Google spokesman. China's embassy in Washington was not immediately available for comment.

Google even accuses China of blocking access to the Japanese People Finder database of missing persons from the Earthquake/Tsunami. More