How We Invented Illegal Immigration Listen Download Embed Share Share this on Facebook (Opens in a new window) Share this on Twitter (Opens in a new window) Share this via Email A boys shows a US flag as President Barack Obama speaks on immigration at the Chamizal National Memorial on May 10, 2011 in El Paso, Texas. ( JEWEL SAMAD/AFP / Getty ) Produced by Arwa Gunja and Jillian Weinberger Produced by PRI and WNYC