1.   But trafficking groups have proven adept at counter-measures, employing spotters to watch out for surprise inspections.

2.   Church officials have subsequently said that Duarte was referring to trafficking groups and politicians in western Valle de Cauca state, of which Cali is the capital.

3.   Several major trafficking groups, including that of the Arellano Felixes, were rooted in that earlier gang.

4.   Guerrero state authorities dismiss the reports of organized rebel activity, claiming that the gunmen probably belong to drug trafficking groups who specialize in growing marijuana.