Despite the unprecedented eradication efforts, coca cultivation actually increased last year by 8 percent, according to a study released in June by the UN Office on Drugs and Crime (UNODC)... While coca was concentrated in three provinces at the start of Plan Colombia, today, it has spread to at least 23 of the country's 32 provinces. This geographical expansion also feeds a different problem, explains Pablo Casas, a security expert at the Security and Democracy Foundation in Bogotá. In the past, counternarcotics work was concentrated in a few areas, he says, but "everyone touches drugs now. Which means there are more police, military, and local authorities for the narcos to try to corrupt."