The Iowa State Patrol made another big drug bust on Interstate 80 Monday in Cedar County. Sergeant Jose Varela says the bust started when a car was stopped for going 84 miles-an-hour. He says the cold weather then tipped the trooper off to the drugs.He says the people were driving a brand new car that didn’t have a working heater. Varela says the trooper called for help to check the car. He says a drug dog came in and indicated there were drugs in the car. Varela says the hidden drugs explained why the car’s heater didn’t work as the two occupants had disconnected the heater to hide some of the drugs. Officers recovered 20 kilograms of cocaine worth an estimated two-million dollars. The two people in the car, a 29 and a 26-year-old, were from Mexico. Varela says the driver admitted they were taking the drugs to Chicago. Both were charged with possession of a controlled substance and a drug tax stamp violation.