In this edition of The Naked Scientists, Apple locked horns with the UK government who were demanding a security back door through the company's encryption. What was the outcome? Also, scientists discover the secret to the tastiest chocolate - it's all down to microbes. And, archaeologists uncover the earliest evidence yet of our ancestors using stone tools... Like this podcast? Please help us by <a href="https://www.thenakedscientists.com/donate">supporting the Naked Scientists</a>

The Naked Scientists flagship science show brings you a lighthearted look at the latest scientific breakthroughs, interviews with the world's top scientists, answers to your science questions and science experiments to try at home.