Did you hear Google CEO Larry Page's TED interview with Charlie Rose? If you missed it, you missed him say this about internet privacy:
So I guess I'm just very worried that with Internet privacy, we're doing the same thing we're doing with medical records, we're throwing out the baby with the bathwater, and we're not really thinking about the tremendous good that can come from people sharing information with the right people in the right ways.
Presumably he means Google. We aren't thinking about the "tremendous good that can come from people sharing information" with Google. Okay.
Keep in mind that this 'warning' about what might happen if we care too much about our privacy comes from someone at the top of a corporation that is peering deep into our collective (and individual) conscious, building robots with the US military, and generally, as he puts it in this TED interview, "trying to understand everything."
Google knows a lot about everyone, including, increasingly, our local governments. And it's a company run by someone who infamously said, "If you have something that you don't want anybody to know, maybe you shouldn't be doing it in the first place."