Michael Greger, MD, Director of Public Health and Agriculture for the Humane Society of the US, speaks at the Health Sciences Learning Center on his national tour to discuss the theory that modern agricultural practices have played an influential role in the evolution of the H5N1 influenza strain. His theories are controversial because of his outspoken bias against industrialized agriculture and his employment by the nation's largest animal welfare agency; at the same time they are intriguing and well presented in his book on the topic. In addition he has been praised as an excellent and entertaining speaker.