Rafael Grossi, Director General of the International Atomic Energy Agency (IAEA), and candidate to become the next secretary-general of the United Nations, recently dropped by The Delegates Lounge podcast (technically, recorded in UNHQ's East Lounge). He was in New York for the start of the review conference of the parties to the treaty on the non-proliferation of nuclear weapons (NPT), which ended on May 22, 2026. The previous week, he'd had his turn in the SG race spotlight, answering questions posed by the world's diplomats here. During the weekend in between, he was in Ukraine to mark the 40th anniversary of the nuclear power plant meltdown in Chornobyl.
In a candid, exclusive half-hour interview, we spoke about a drone strike damaging Chornobyl's protective structure and other grave risks posed to nuclear safety. We pivoted to artificial intelligence governance and maritime security and discussed how his experience in his current role would impact his approach to these vital spheres of international security should he be elected as the 10th secretary-general, who will succeed UN Secretary-General António Guterres in January.
This interview was recorded on April 29, 2026. Since then, a fifth candidate for secretary-general has joined the race.
Speakers:
J. Alex Tarquinio (host) is a resident correspondent at the United Nations in New York and co-founder of The Delegates Lounge® podcast. @alextarquinio of @delegateslounge on X and @thedelegateslounge on Instagram.
Rafael Grossi (guest) is an Argentine diplomat. He has been serving as Director General of the International Atomic Energy Agency (IAEA) since December 2019. He was formerly the Argentine ambassador to Austria, concurrent with Slovenia, Slovakia and International Organizations based in Vienna, from 2013 to 2019. @rafaelmgrossi of @IAEAorg on X and @grossirafaelmariano of @iaeaorg on Instagram.
References:
Read our host’s analysis of the race for the next secretary-general of the United Nations in Foreign Policy at:
https://foreignpolicy.com/2026/04/22/un-secretary-general-race-guterres-candidate-questions-dialogues/
Subscribe to our YouTube channel, where you can watch episodes with photos, maps, and graphics, at:
https://www.youtube.com/@TheDelegatesLounge
Cover Photo Credit:
Rafael Grossi briefing reporters at UNHQ on October 27, 2022: UN Photo/Manuel Elías