Have attitudes towards U.S. immigration changed over the years?
A new study looks at decades worth of political speeches, to see how point-of-views may or may not have shifted.
For more on this, KCBS Radio news anchors Eric Thomas and Melissa Culross spoke with Ran Abramitzky, Professor of Economics and Senior Associate Dean for Social Sciences at Stanford and co-author of Streets of Gold: America's Untold Story of Immigrant Success.