I think that at least the latter half of this post is missing one huge piece of information. How can you be sure that it is Google that is defining public/private data. A lot of organizations are required to follow federal standards which in themselves define what is public and private. Social Security Numbers and Credit Card Numbers are always at the top of every one of those lists. For reference look at PCI DSS (http://en.wikipedia.org/wiki/PCI_DSS), FERPA (http://www.ed.gov/policy/gen/guid/fpco/ferpa/index.html), and HIPPA (http://en.wikipedia.org/wiki/Health_Insurance_Portability_and_Accountability_Act). Now while FERPA and HIPPA might not have anything talking about SS#s and CC#s take this excerpt from FERPA: "Schools may disclose, without consent, "directory" information such as a student's name, address, telephone number, date and place of birth, honors and awards, and dates of attendance." If a school can publicly disclose addresses without consent which they collect mandatorily, why can't Google, who is just indexing information that was already public not link to it? The problem with the private data online isn't Google, they are just the biggest target that happens to have been hit by this guy's particular wild shooting.