The more than $1 trillion infrastructure package would require that alcohol monitors be placed in all new cars. Within the 2,700-page infrastructure proposal is a section that mandates new vehicles have “a system that … passively and accurately detect[s] whether the blood alcohol concentration of a driver of a motor vehicle is equal to or greater than the blood alcohol concentration” of 0.08, which is generally the limit to drive in most states. If the driver has a higher than 0.08 blood alcohol concentration, the car’s system would “prevent or limit motor vehicle operation.” It’s not clear whether the alcohol-detection system would have to be a breathalyzer, which requires a driver to blow into a device, or something else. Mothers Against Drunk Driving (MADD) recommends that cars have a “driver monitoring system” including “touch-based systems that can read your blood alcohol concentration through your fingertips and air-sampling systems that can test and …