Tonight on Amanpour and Company: David Satterfield, Former U.S. Special Envoy for Middle East Humanitarian Issues; Report: Roba's Story; Raja Shehadeh, Palestinian author and human rights lawyer. Hari Sreenivasan interviews Nate Halverson, Investigative Journalist, The Grab / Senior Reporter, The Center for Investigative Reporting & Gabriela Cowperthwaite, Director, The Grab.