'Scratch a communist, you’ll find a nationalist underneath’, Professor Kerry Brown, the director of the Lau China Institute at King's College London, tells me on this episode. Together with Professor Victor Shih of UC San Diego, we talk about what drives the Chinese Communist Party (hint: it's not communism), what membership means today and the policy disputes that happen behind the scenes. And: as it prepares to mark its first centenary this year, will it still be around in another fifty years?