In 2016 the murder rate in the American city of Chicago went up by 50% - there were were 762 killings. That's more killings in Chicago than Los Angeles and New York combined. The fact other cities have far lower levels of violence raises the question - what are they doing right? How have they brought murder rates down? Join Owen Bennett Jones and his panel of experts discussing the social, economic, political and policing issues that lie behind the numbers and the possible solutions to dealing with urban violence. (Photo: A march in Chicago to commemorate victims of gun violence held on New Year's Eve 2016. Credit: Getty Images)