We are online – constantly and all the time. When election campaigns are taking place, this is potentially dangerous – because online opinion-makers can infiltrate social networks and post information in a targeted manner. This gives them the most powerful asset a democracy can have: the vote of every individual. In the new episode of Lesch’s Cosmos, Harald Lesch explains why we disclose personal data so willingly, how filter bubbles are created and he looks at how we can protect ourselves against propaganda on the Internet.

WRITER: Tamar Baumgarten-Noort     DIRECTOR: Christine Voges     CAMERA: Oliver Kratz     EDITOR: Igor Garbuzenko      MUSIC: Ritchie Staringer     COMMISSIONING EDITOR: Sabine Armsen