 The distribution networks were also highly elaborate, and many people were involved locally and nationally in the consumption of the imported cocaine.Importers reveal that condominiums were purchased near particular ocean waterways to provide a monitoring post for U.S. Coast Guard and local police patrol boats, and high-tech radio equipment was used to monitor the radio frequencies of federal, state, and local authorities in order to warn incoming boats and airplanes.The film reveals that much of the economic growth which took place in Miami during this period was a benefit of the drug trade.