YouTube is the most watched video platform in human history. Its algorithm-driven recommendation system played a huge role in driving Brazilians toward the far-right, catapulting a little-known populist named Jair Bolsonaro to the presidency. Now he's governing via YouTube, pushing followers toward extremist channels spreading misinformation and propaganda online. If YouTube can influence a huge country’s trajectory, what else can YouTube do? (Episode 9 of 30)