This past year has been marked by intensified immigration enforcement, as federal agents continue making violent arrests and targeted sweeps across the country.The act of deportation represents one of the most consequential parts of the Trump administration's immigration policy, and is the end goal for these aggressive raids.Monday on Midday Edition, a filmmaker and historian dive into the origins of deportation and how racism can influence modern immigration policy.Guests:Alex Rivera, filmmaker and associate professor, Arizona State University Sidney Poitier New American Film SchoolKelly Lytle Hernández, Thomas E. Lifka Endowed Chair in History, professor, University of California Los Angeles