It’s a curtain call for co-host Michelle Dover. On her last Press the Button episode, Dover is joined by Ploughshares Fund President Emma Belcher and fellow co-host Tom Collina. They quiz Dover on her favorite moments on the podcast and her personal journey in the nuclear policy field.

On Early Warning, co-host Tom Collina is joined by Emma Claire Foley, senior associate for research and policy at Global Zero. She walks through how nuclear policy has changed since Obama’s Prague speech and what we’ll most likely see from the upcoming Nuclear Posture Review.