Though names like Mother Ann Lee and Charles Fourier are not names that ring a bell for most today, they founded two of the most influential utopian movements in US history. 19th Century communes like the Shakers and Brook Farm are gone today their legacy – politically and culturally, are all around us. Chris Jennings is the author of “Paradise Now: The Story of American Utopianism.” Steve Paulson sat down with Jennings and asked him about what is now a dirty word, utopia.