PoliticsMedellín: Ending the spiral of violence02:35This browser does not support the video element.Politics11/18/2017November 18, 2017For years, Comuna trece in Medellín - Commune 13 - was one of Colombia’s most dangerous places. At times, the murder rate there was the worlds highest. Now, social reforms and radical urban experiments are bringing change to the neighborhood.Copy linkAdvertisement