Which tech companies are really doing the most harm?
Jonathan L. Fischer writes: Maybe it was fake news, Russian trolls, and Cambridge Analytica. Or Travis Kalanick’s conniption in an Uber. Or the unmasking of Theranos. Or all those Twitter Nazis, and racist Google results, and conspiracy theories on YouTube. Though activists, academics, reporters, and regulators had sent up warning flares for years, it wasn’t until quite recently that the era of enchantment with Silicon Valley ended. The list of scandals—over user privacy and security, over corporate surveillance and data…