Mary Kaldor is professor of global governance at the London School of Economics and Political Science and the author of New and Old Wars: Organized Violence in a Global Era. She was a founding member of European Nuclear Disarmament (END), co-chair of the Helsinki Citizens Assembly, and convener of the Human Security Study Group that reported to Javier Solana, then High Representative for Common Foreign and Security Policy of the European Union.
As the world reacts to news of North Korea's underground nuclear test, a crucial anniversary is observed: Twenty years ago at the Reykjavik Summit, Ronald Reagan and Mikhail Gorbachev outlined a vision for a non-nuclear world. What went wrong? In this Nation forum, four experts from the nonproliferation movement discuss how to put disarmament back on the world's agenda.