You don’t have to be paranoid to recognize that privacy isn’t what it used to be. The government can get access to our phone calls and emails, video surveillance is becoming a norm in public places, and nearly everyone has the ability to record at will, discreetly from their cellphones. It’s no wonder that paranoia is becoming a common phenomenon. But at what point does a healthy suspicion become delusional denial?

Today’s guest is clinical psychologist David Laporte, a professor of psychology at Indiana University of Pennsylvania, and author of the new book, Paranoid: Exploring Suspicion from the Dubious to the Delusional. Laporte considers paranoia a defining affliction of the modern age, as the paranoid mindset becomes ever more legitimized by the media and political figures. Research suggests that one need not be schizophrenic to suffer from a paranoia disorder, as many people may fall within a spectrum of varying gravities of paranoia, much of which is just beginning to be understood in clinical psychology.