Robyn O’Brien, author of "The Unhealthy Truth: How Our Food Is Making Us Sick and What We Can Do About It," shares her personal story and her research into the impact that the global food system is having on the health of our children and our nation. She founded allergykidsfoundation.org and has been described by The New York Times as "Food's Erin Brockovich." http://allergykidsfoundation.org http://twitter.com/unhealthytruth