Tonight on Amanpour and Company: Gregg Nunziata, Executive Director, Society for the Rule of Law; Jan Egeland, Secretary General, Norwegian Refugee Council; REPORT: NEW VIDEO EVIDENCE IN KILLING OF GAZA HEALTH WORKERS; Hari Sreenivasan interviews Dr. Tom Frieden Former Director, Centers for Disease Control and Prevention; From the Archive: Denise Uwimana, Rwandan Genocide Survivor.