Can deciphering the label on an egg carton help consumers change the food system? David Evans and Alexis Koefoed think so. These poultry farmers explain the real story behind such catchphrases as "cage free", "free range" and "pasture raised" so that consumers can make informed decisions when they go to their local supermarket. This excerpt is from the film "The Lexicon of Sustainability." Credits: Producer/ Director: Douglas Gayeton Co-Producer: Laura Howard-Gayeton The Story of an Egg is a Rumplefarm production, funded and presented by ITVS and the Corporation for Public Broadcasting. For more information visit: http://itvs.org/films/lexicon-of-sustainability http://www.lexiconofsustainability.com/ For more great stories, subscribe to The I Files: http://www.youtube.com/subscription_center?add_user=theifilestv Like The I Files on Facebook: http://fb.com/theifiles Follow us on Twitter: http://twitter.com/ifiles Reblog us on Tumblr: http://theifiles.tumblr.com Repin us on Pinterest: http://pinterest.com/theifiles +1 us on Google+: http://gplus.to/ifiles