From Ferguson to Minneapolis, protests against racist policing have been catalyzed by videos of the brutality being spread on social media. On today’s A Word, Jason Johnson sits down with Dr. Ruha Benjamin to talk about her book, Viral Justice: How We Grow the World We Want, and where social sciences and technology intersect.  Guest: Ruha Benjamin You can skip all the ads in A Word by joining Slate Plus. Sign up now at slate.com/awordplus for just $1 for your first month. Learn more about your ad choices. Visit megaphone.fm/adchoices