No country has managed as rapid and positive a turnaround in governance and security conditions this century than Colombia. In 1999, rebels of the FARC and ELN were, literally, at the gates of Bogota, Colombian known more for rapacious corruption, weak government, drug smuggling and criminality, a country synonymous with the antics of Pablo Escobar. Fifteen years later the guerrillas and the government are at the peace table in Havana, the economy...