Tonight ghosts, goblins, gremlins and all manner of imaginary monsters may knock on your door. But while Halloween is all about make believe, for some people the business of paranormal phenomenon is serious. Sally Rhine Feather is one of them. She is executive director emeritus of the Rhine Research Center in Durham. The center, founded by Feather’s father, J.B. Rhine, has been around in one form or another for 70 years. In that time, it has investigated such unexplained experiences as telepathy, clairvoyance and life after death. Host Frank Stasio talks to Feather about her work and her family’s history as researchers of the paranormal.