The Southern Border of the United States has been at the center of controversy since Donald Trump opened his campaign for president by taking aim at Illegal immigrants and making "Build a wall" one of his most well known slogans.
Missing from headlines about Trump's extreme policies, is the and why the Migrant Caravan, Refugees and immigrants are coming to the border?
Professor Greg Grandin, author of numerous books, including The Last Colonial Massacre and the upcoming The End of the Myth: From the Frontier to the Border Wall, joins The Thom Hartmann Program with disturbing answers, imperialism and colonialism.
Did U.S. imperialism create the migrant crisis?
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