Where do we draw the line on hate speech?

In 2009, I was encouraged by some friends at work to join a new social media platform called Twitter. I remember watching a short promo video and hearing about how this site allowed people all across the world to connect and speak freely about whatever came to mind — whether about our favorite sport teams or the most important social issues of the day. But as the platform grew in users and influence in the public square, real challenges emerged about how to navigate violence, misinformation, and...