Ghost hunters on television all seem to have a common goal: to prove that ghosts are real using sophisticated, yet inexact technology. Colin Dickey, the author of Ghostland: An American History in Haunted Places, says this is not an accident. The relationship between technology and ghosthunters is as old as the telegraph. But Dickey is not interested in proving they are real; he is fascinated with what the ghost stories we tell reveal about our society.