Andrews writes about the widespread misuse of our personal online data and creates a Constitution for the web. Social networks are the defining cultural movement of our time... Colleges and employers routinely reject applicants because of information found on social networks. Cops use photos from people's profiles to charge them with crimes, or argue for harsher sentences. Robbers use postings about vacations to figure out when to break into homes... The same power of information that can topple governments can also topple a person's career, marriage, or future.