Talk@12 9/8/08 IOWA (kuni) - Katherine Perkins speaks with Willis Goudy, Emeritus professor of sociology at Iowa State University and author of "Iowa's Numbers: 150 Years of Decennial Census Data with a Glance to the Future." They will discuss demographic trends as well as explore Iowa's ever-changing population. Later, Dennis Olson, Professor of Animal Science and director Iowa State's Linear Accelerator Facility joins to talk about irradiation. © Copyright 2009, kuni