He is also a senior fellow at the USC Center on Public Diplomacy, a joint project of USC Annenberg and the USC College’s School of International Relations, and an adjunct fellow at the Pacific Council on International Policy.
He is a member of the Council on Foreign Relations and the Pacific Council on International Policy, and served for five years on the UN Secretary-General's Advisory Board on Disarmament Matters and the Board of Trustees of the UN Institute for Disarmament Research.
Pacific Ocean | ATP International Series | Pacific | International Monetary Fund | Canadian Pacific Railway | International Red Cross and Red Crescent Movement | ATP International Series Gold | International Space Station | Amnesty International | Second Vatican Council | International Olympic Committee | World Boxing Council | United States National Research Council | Pacific War | BirdLife International | National Research Council | International Finance Corporation | International Organization for Standardization | International Telecommunication Union | International Criminal Court | Privy Council of the United Kingdom | One Day International | International Nonproprietary Name | International Labour Organization | British Council | International Civil Aviation Organization | International Boxing Federation | Toronto International Film Festival | South Pacific | International Atomic Energy Agency |
Cowan serves on the boards of the California HealthCare Foundation, Common Sense Media, the Pacific Council on International Policy and the Susan Thompson Buffett Foundation.