My guest on this week's Book Club podcast is Fara Dabhoiwala, whose new book What Is Free Speech? The History of a Dangerous Idea looks not just at the origins of free speech as an idea, but also its uses and misuses. Fara tells me the bizarre story of how he found himself ‘cancelled’, gives us the scoop on who actually invented free speech and explains how to think more deeply about free speech as a global as well as a local question – by tracing how we got into our current predicaments.