2. Over 20 accounts belonged to human rights activists were hacked.
Was there a “Human Rights Activist” option under occupation when you sign up with Gmail?
Since when any company know what their customers do at their free time?

3. The hackers used a weakness in Internet Explorer.
Well I am not professional, but I am “expert” enough to know web (servers) do not use Windows based Operating Systems, let alone “Internet Explorer”.
What does a weakness of my front door locker have anything to do with the theft of your SUV?

4. Google traced the origin of hacking to two Chinese schools. Shanghai Jiaotong University and the Lancing Vocational School, who train computer technicians for the Chinese military.

Ok, Lancing(lanxiang) Vocational School is a high school level institution. In China, only the top 1/3 middle school graduates are allowed into high school. Those who can’t get into high school will go to this kind of institution which train hairdressers, cooks, etc. low level professions.
All Chinese educational institutions would be on vocation during the time of hacking. Because of Chinese New Year, the winter break in China comes later than in the U.S.

You know what I am thinking?
The U.S. needs anti-China propaganda on daily basis. So this is just another one of the daily drink for drones. Google CEO was cooperative because it is a chance to give Google more media attention.