Policy
Big Data Are Reducing Homicides in Cities across the Americas
City leaders across the Americas are exploiting science to reduce homicide
Stories by Rodrigo Guerrero Velasco
Rodrigo Guerrero Velasco has been mayor of Cali, Colombia, since 2012. He was also mayor from 1992 to 1994. After his first term, he worked for the Pan American Health Organization and helped to start VallenPaz to create economic programs in guerrilla-infested and illicit drug–producing rural Colombia. Credit: Nick Higgins
