Louis Klarevas, a research professor at Columbia University and author of "Rampage Nation," dives deep into the intricacies of gun control policy. He discusses the historical evidence vacuum in the U.S. and how grassroots movements are driving change. Klarevas emphasizes the power of data in advocacy while revealing challenges posed by misinformation and lobby influences. The conversation highlights the potential of citizens' assemblies to inform pivotal debates in gun regulation and NHS reform, illuminating a path forward for evidence-based policy.