Despite a five-year battle that has put several top Mexican drug capos behind bars, the cartels’ power and reach is so great that they can still corrupt elite police at will to stay ahead of the law. Faced with rampant police graft when he took office in 2000, President Vicente Fox founded a crack unit modeled on the FBI to hunt down ruthless traffickers grown rich hauling cocaine, marijuana and amphetamines over the U.S. border. Full Story