This Is the Biggest Challenge Facing the Next U.N. Leader

Opening his last General Assembly debate on Sept. 20, U.N. Secretary-General Ban Ki-moon bemoaned the blocking of essential action in the Security Council that has marred his time in office: “Is it fair for any one country to wield such disproportionate power and hold the world hostage on so many important issues?"

This will be a major challenge waiting for Ban’s newly-appointed successor, Antonio Guterres.