This podcast from Transport Security International Magazine, examines the 2004 Madrid train bombings, known in Spain as 11M. The podcast explores the confusion and controversy that surrounded the attacks, particularly in the immediate aftermath, when the government initially blamed the Basque separatist group ETA. However, evidence soon pointed to a cell linked to al-Qaeda, leading to a trial and the conviction of several individuals. The podcast also discusses the political ramifications of the bombings, which led to the defeat of the incumbent Prime Minister, José María Aznar, and the election of José Luis Rodríguez Zapatero. Additionally, the podcast highlights the lasting impact of the event on Spanish society and the lingering questions surrounding its origins and the government’s response.