On Wednesday, Telegram founder Pavel Durov was charged in France with a wide range of crimes related to illicit activity on the app. His detainment is part of an ongoing investigation by French authorities into the social media app.  Telegram, with its more than 900 million users, often offers a window into what’s happening on the ground in countries where state censorship is rampant. At the same time, it can be a haven for hate speech and criminality because of the app’s encryption and lack of content moderation. Durov’s arrest has already lit up a firestorm of debate on whether tech leaders are accountable for what happens on their platforms. Tech journalist Chris Stokel-Walker looks at what Telegram has come to represent, the scrutiny of its founder, and what this case might tell us about the limits of free speech online. For transcripts of Front Burner, please visit: https://www.cbc.ca/radio/frontburner/transcripts