on this american life

this american life on NPR

the devil inside

and I quote from the website...

We all have that thing in us: a voice telling us to do or think something we shouldn't. In this episode, stories of people trying to exorcize that voice. An Iraq War veteran comes home with an aversion to all Muslims and decides to systematically defeat his own bigotry. And a fundamentalist Christian takes on an actual demon who happens to visit his college classroom.