WAMC Speakers Corner WAMC's Alan Chartock In Conversation with Mary Beth Pfeiffer, Chief Investigative Reporter WAMC Northeast Public Radio | By David Guistina Published August 14, 2014 at 10:30 AM EDT Facebook Twitter LinkedIn Listen • 53:00 WAMC’s Alan Chartock In Conversation with Mary Beth Pfeiffer -- Projects Writer and Chief Investigative Reporter for the Poughkeepsie Journal