As Russian scientists say that the former Palestinian leader died of natural causes, we look at the ongoing controversy. Inside Story, with presenter Sami Zeidan, discusses with guests: Dmitry Babich, a political commentator for the Voice of Russia; Saad Djebbar, a lawyer representing the Arafat Family; and Darcy Christen, a spokesman for the Lausanne-based Institute of Radiation Physics, which conducted the Swiss study.