Summary: <p>Rachel St. John discusses her recent piece for the <em>Smithsonian</em> magazine, “<a href="https://www.smithsonianmag.com/history/raging-controversy-border-began-100-years-ago-180969343/" target="_blank">The Raging Controversy at the Border Began With This Incident 100 Years Ago</a>.” In 1918, a fence to direct the flow of people crossing the border between Mexico and Arizona was built. Today, that fence and other barriers that stand between the U.S.-Mexico border are not only an international boundary but also a humanitarian crisis.</p> <p><em>This segment is guest hosted by Duarte Geraldino.</em></p>
