Border patrol agents arrest immigrants in 2007 who had recently crossed the border from Mexico into Nogales, Ariz. Federal programs like Operation Streamline put border-crossers without other prior criminal records through the federal court system. Ted Robbins/NPR hide caption

Jennifer May watches her sons Wyndham and Carson introduce children's storybooks to Mike May, after surgeries to correct blindness in one of Mike’s eyes in 2000. Florence Low For NPR hide caption

Several elementary schools, high schools and K-12 schools make up the RFK campus. Tim Street-Porter hide caption

Carlos Gardel circa 1933. Jose Maria Silva/Archivo General de la Nacion hide caption