There are a number of websites that allow you to search for information about people, generally based on typing in their name and state of residence.
If they put the wrong information about a person online, then I assume they can be sued for defamation. I just wondered if they have some special tricks for getting away with posting wrongful information.
As an extreme example, consider the hard core criminal I asked about @ Determining a serial felon's status
While searching for information about him in such a website, I was led to a page that attached his record to someone with the same name. The irony is that the innocent person is a pastor. So we're talking about a pastor falsely accused of manslaughter, kidnapping, murder and child rape.