On today’s show:In light of Wednesday's school shooting, we revisit a 2012 conversation with David Hemenway, professor of Health Policy at Harvard University and director of the Harvard Injury Control Research Center, on how Australia was able to significantly curb its gun violence. We discuss the medical and political decisions around the death of Mohamad Reza Pahlavi, the last Shah of Iran, with A Dying King director Bobak Kalhor and historian Mateo Farzeneh, associate professor of history and inaugural principal of The Mossadegh Initiative at Northeastern Illinois University-Chicago. We talk about the plights and corruption allegations of South Africa’s now former President Jacob Zuma and Israel's Prime Minister Benjamin Netanyahu with Ilanit Chernick, reporter for the Jerusalem Post and former reporter for the Johannesburg Star.