As protests over police brutality and systemic racism continue, social media is a tool for organizing, amplifying and arguing. Yes, it can often be a racist dumpster fire. But, experts say that a big, messy public square might actually be the best place to create political change. Host Molly Wood speaks with Omar Wasow, who is a founder of the social media site BlackPlanet, an early place for online Black expression. He’s now a professor at Princeton studying race and protest.