>“In general we collect data on people who are not signed up for Facebook for security purposes,” Zuckerberg said Wednesday in a hearing about the social networ

>“In general we collect data on people who are not signed up for Facebook for security purposes,” Zuckerberg said Wednesday in a hearing about the social network’s privacy practices in Washington before the House Energy and Commerce Committee." It was extremely unfortunate that he wasn't subsequently asked exactly how collecting data on non-FB users related to security. It's baffling how that could go unasked. Of course this was just another "prepared" response, but can anyone say how the rest of this contrived response goes? How does keeping data on non-FB users relate to security?