This summer saw far-right mobs unleash devastating violence towards migrants and asylum seekers in Britain. It’s a far cry from the outpouring of sympathy shown during the European refugee crisis a decade ago. The new seven-part documentary podcast Fortress Europe shows how years of increasingly brutal and dehumanizing anti-migrant policies have fanned the flames of extremism but still failed to prevent record high asylum applications. We travel across the continent hearing from people making treacherous journeys, those trying to stop them, and those standing up for their rights