Colin Marshall talks to Ken Freedman, general manager of Jersey City’s WFMU, the longest-running freeform radio station in the United States. Since the mid-1980s, Freedman and his staff have made WFMU’s name a byword for the modern freeform sensibility with a combination of, among other factors, early adoption of new distribution technology, avoidance of identity politics and pure, unadulterated unpredictability.