Now that slavery, of all things, has popped up as one of the weirder talking points in the bizarre U.S. presidential campaign, we figured it might be time to examine just how much of a link slavery -- and everything it connotes -- has to do with international economics. And yes, we did get into Brazil just last week, but with the Olympics starting this month, what better region to focus on than Latin America? Join Dan Moss and Kate Smith, along with Sao Paulo-born Vivianne Rodrigues, who runs economic and government news in the region, as we discuss why some nations clung so long to plantation-based economies that they lagged in making the leap to industrialization.