"UK scientists have created the world's first genetically modified chickens that do not spread bird flu. Writing in Science journal, the team says their work demonstrates it is possible to create a variety of GM farm animals resistant to viral diseases. The research team inserted an artificial gene into chickens; this introduces a tiny part of the bird flu virus into chicken cells. These birds become infected but render the virus harmless to other poultry. The team believes that the genetic modification they have introduced is harmless to the chickens and to people who might eat the birds. " http://www.bbc.co.uk/news/science-environment-12181382 While this sounds like a good idea, there is so much potential for things to be horribly horribly wrong.