Amanpour and Company

Tonight on Amanpour and Company: Carlos Vecchio, Venezuelan Opposition-appointed Charge d'Affaires to the U.S.; Ryan Young, CNN US Correspondent; Richard Alley, Climate Scientist, Pennsylvania State University; Paweł Pawlikowski, Director, Cold War. Hari Sreenivasan interviews Sara Goldrick-Rab, Temple Univ. Professor of Higher Education & Sociology.