While many schools and people who work in schools are more aware of bullying now than in generations past, there are still a lot of questions about it, and how to prevent it.

That’s something Jonathan Cohen spends his time studying. He’s the incoming co-president of the International Observatory on School Climate and Violence Prevention, and an adjunct professor in psychology and education at Teachers College, Columbia University

He joined The Show to talk about the increase in reported incidents and what that means.