No, Justice Breyer wasn't using a file-sharing network himself. But a guy at his investment firm was on LimeWire and inadvertently shared "the names, dates of birth and Social Security numbers of about 2,000 of the firm's clients, including a number of high-powered lawyers and Supreme Court Justice Stephen G. Breyer," the Washington Post reports. This isn't just about file-sharing in the workplace. It's about how private family records and information can be made public on P2P networks if file-sharers and music fans at home aren't configuring the software correctly. It's only one key topic for family discussion about file-sharing, others being the ethics of file-sharing and the potential for parents being sued by the RIAA for pirated music shared on family computers (at least go into the software with your kid and see how Preferences, Options, or Sharing is set up).