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.

"The Takeaway" is PRI’s new national morning news program, delivering the news and analysis you need to catch up, start your day, and prepare for what’s ahead. The show is a co-production of WNYC and PRI, in editorial collaboration with the BBC, The New York Times Radio, and WGBH.

"The Takeaway" launches nationwide on April 28, in Baltimore, Boston, New York, and other markets — get details on stations and air time. The show is also available online at thetakeaway.org.