This episode of Talking Biotech features stories of genetically engineered chickens that do not spread the avian influenza virus. This year over 45 million birds have died or have been euthanized because of illness from the avian flu. Prof. Helen Sang of the Roslin Institute in Edinburgh, Scotland is part of the research team that engineered chickens using a clever strategy– they can catch the virus and become ill, but they do not transmit it. She discusses the technology and its hurdles to commercialization.  In the second segment Dr. David Spooner from the USDA ARS and University of Wisconsin talks about the origins of potatoes, the evidence of his path to domestication, and aspects about the future of potato biotechnology.  Special guest co-host Amira- Executive Chef.