http://feeds.gigavox.com/~r/gigavox/channel/itconversations/~5/36528588/ITC.TN-DavidQuammen-2006.10.10.mp3 David Quammen - Tech Nation GigaVoxMedia-1621 2006-10-12 http://assets.conversationsnetwork.org/channels/ITConversations/itc-300x300.jpg