MP4 : Building Bridges program with WTPN with their guest David Essing, Senior Correspondent & News Analyst (July 18, 2012)FLV : Building Bridges program with WTPN with their guest David Essing, Senior Correspondent & News Analyst (July 18, 2012)MP4 FOR IPOD (edge) : Building Bridges program with WTPN with their guest David Essing, Senior Correspondent & News Analyst (July 18, 2012)MP3 : Building Bridges program with WTPN with their guest David Essing, Senior Correspondent & News Analyst (July 18, 2012)