Richard Butler, a retired Australian diplomat and former UN ambassador, shares his extensive experience in nuclear disarmament. He discusses the major treaties like the NPT and CTBT, highlighting Australia's nuanced stance on nuclear diplomacy. Butler recounts humorous and poignant anecdotes from negotiations, including his memorable Moscow trip. He reflects on the global rise of nuclear-armed states and the challenges of multilateralism. The conversation emphasizes the importance of listening and innovative tactics in effective diplomacy.