MEXICO CITY (AP) — Mexico launched a special 5,000-strong police force Friday to combat industrial, farm and business crime that has extended far throughout the country's economy, strangling commerce in some regions. Drug gangs have long penetrated some Mexican mining and agricultural sectors, but officials now reveal that everyone from fishermen to tourist resorts to banana growers have been hit by the wave of extortion, kidnapping and thefts by the gangs. Trained by the Mexican army, the forces' commanding officers got training from police forces from Colombia, Chile, Spain, France and the U.S. Luis Montoya Morelia, the head of federal police in Tamaulipas, said the hyper-violent Zetas cartel had threatened fishermen on the Gulf coast, forcing them to sell their catch to the cartel for just 7 cents per kilograms (3 cents per pound). Rubido said cattle ranchers in southern Mexico were buying sorghum abroad because nobody would rent harvesting machines to sorghum growers in Tamaulipas, apparently fearing the cartels would burn or steal the equipment.