According to Bruce Schneier, the Google attacks were using the CALEA intercept points which are mandated by US law. There is no possible way that Google could shut down those access points without violating US law.

> In order to comply with government search warrants on user data, Google created a backdoor access system into Gmail accounts. This feature is what the Chinese hackers exploited to gain access.

http://www.cnn.com/2010/OPINION/01/23/schneier.google.hackin...