The new Google Dashboard addresses concerns that users have regarding just how much Google knows about them. Providing a resource like the Google Dashboard that presents all associated information in one place may actually create more privacy and security issues than it solves though.
Users have a reason to be concerned, or at least curious, about what kind of information is available about them on the Web. Google is like the Big Brother of the Internet--indexing and cataloging virtually everything you do online. Web indexing is like social networking in that its core purpose is in direct conflict with privacy and security. The primary goal is to index everything and provide access to as much information as possible--even if that information is sensitive or personal.