The United States has spent millions per mile to build a border fence to keep unauthorized migrants out of the country, and recently, there has been a substantial drop in migrants arrested at the border. Professor Josiah Heyman says it's not solely because of the wall. There are other deterrents, such as the struggling U.S. economy and the downturn in the housing and construction markets.Guest: Professor Josiah Heyman, Department of Sociology and Anthropology, the University of Texas at El Paso.
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