MP4 : Building Bridges program with WTPN with their guest David Hearst, The Guardian-Chief Foreign Leader Writer (October 18, 2012)FLV : Building Bridges program with WTPN with their guest David Hearst, The Guardian-Chief Foreign Leader Writer (October 18, 2012)MP4 FOR IPOD (edge) : Building Bridges program with WTPN with their guest David Hearst, The Guardian-Chief Foreign Leader Writer (October 18, 2012)MP3 : Building Bridges program with WTPN with their guest David Hearst, The Guardian-Chief Foreign Leader Writer (October 18, 2012)