February 12, 2019

Christiane Amanpour speaks with Dee Margo, the mayor of El Paso, TX, to discuss the reality of a border wall; and Mary Bauer & Ed Lavandera about the humanitarian crisis caused by child separations at the border. Hari Sreenivasan speaks with former U.S. Secretary of Homeland Security Michael Chertoff about the growing threat to our privacy today.