America’s withdrawal from northern Syria and the subsequent Turkish invasion have overturned the power balance in the region, displacing tens of thousands of America’s former allies, the Kurds. Ash Carter helped build that alliance as US secretary of defence. John Prideaux, The Economist’s US editor, asks him how America’s actions in Syria will affect its ability to deal with future threats. Also, why Secretary Carter believes some American companies are too quick to abandon American values. And, how to run the biggest organisation in the world For information regarding your data privacy, visit acast.com/privacy