Facebook already knows your age, education and employment data, it has seen your wedding pictures - and anything else you have decided to post. The key question is, do consumers understand what can happen to their data? Privacy experts often warn that the notion that consumers can control the content they post online is illusory. Yet, most users don’t bother reading terms of service or question a company’s intentions when they sign up for a new site. Most of us just trust the vendor to do a good job and protect our data. In response to the uproar Facebook Chief Executive Mark Zuckerberg said, “We wouldn’t share your information in a way you wouldn’t want. The trust you place in us as a safe place to share information is the most important part of what makes Facebook work.” I hope so. Zuckerberg's note to users is here.