Immigration across the Mexican border is a major issue among Republican presidential candidates -- with Donald Trump calling for a massive increase in security. We hear that reality at the border itself is very different from the way it's depicted on the campaign trail.
Later on the program, black students are demanding that Princeton University acknowledge the racist views of US President Woodrow Wilson, a man central to the University’s history. It's just one institution caught in a bind when history is judged by contemporary standards.
Photo: The towns of Nogales, Arizona (L) and Nogales, Mexico (R), separated by a high concrete and steel fence. (Sgt. 1st Class Gordon Hyde)