Rethink to stop cyberbullying

Online bullying has real-world consequences, and young software engineer Trisha Prabhu saw a way to help. She invented a tool called ReThink that does one simple, elegant thing: it asks people, before they send a hurtful message, if they really want to say that. And most people, it turns out, say: well, actually, no. Hear the story of this clever invention.