How Twitter, on the front lines of history, finally decided to ban Trump

Two days after the riot at the U.S. Capitol, Twitter's most senior policy executive faced her 5,200 colleagues on a video conference and made an impassioned appeal.

Vijaya Gadde's voice was breakingas she implored her colleagues to have patience while her team deliberated over what they knew was the most important decision in the social media service's 15-year history...