How far should Google go when it comes to profiting from the massive amounts of personal data they posses? That's the question that is discussed in a confidential (not anymore) "vision statement" that was put together in 2008 by Aitan Weinberg, who is now a senior product manager. The Wall Street Journal got their hands on the document and they say that it is a blueprint for turning Google into the biggest clearninghouse for what most would consider to be private data.