One non-rational characteristic of Mexico's trafficking groups is their tendency to divide and divide again. From the almost monopolistic Guadalajara Cartel which towered over the country's drug trade in the 1970s have sprung many of the current groups we see today. These splits have often been driven by personal vendettas and family feuds. The Federation that dominated the business in the early 2000s split when Joaquin·Guzman, alias "El Chapo," apparently ordered the murder of the brother of·Juarez Cartel leader Vicente Carrillo Fuentes -- this despite the fact it would likely have been safer and more profitable to stay in a unified mega-group.
Read it all here. HT: Sonja Wolf.