In a rapidly legalizing country, releasing folks incarcerated for nonviolent cannabis offenses sounds like an easy social justice win—so why can’t we make it happen? In this episode, Broccoli science editor Zoe Sigman explains that despite the numbers thrown around by the media, we don’t actually know how many people are serving time for cannabis, an essential detail for any wide-ranging reform. Fixing this data-based challenge so that folks can be free is igniting the next phase of Zoe’s advocacy career. She shares thoughts on possible fixes, as well as stories about her activist work, from nearly being arrested by the FBI during Occupy to trimming weed and starting a meditation program for inmates.