A newly released report shows the parents who crossed into the United States illegally were separated from their children before the Trump administration's zero tolerance practice took effect in May.
But holding the agents accountable has proven especially difficult considering the accusers are often undocumented immigrants with limited legal rights.
Immigration authorities have erected 23 towers outfitted with cameras to scan hundreds of square miles in search of people attempting to cross the border.
Border Patrol agent Robert Rodriguez tracks for signs of undocumented immigrants along the U.S.-Mexico border near McAllen, Texas, on March 26th, 2018.
Francisco Cantú's memoir of his time as a Border Patrol agent asks some important questions about violence, complicity, and the blurred lines between people and the institutions they serve.