If the NTSB truly wanted to reduce traffic deaths, they’d focus on speed. Speed limiters (overridable) that discouraged the driver from going over the speed lim

If the NTSB truly wanted to reduce traffic deaths, they’d focus on speed. Speed limiters (overridable) that discouraged the driver from going over the speed limit would do more more to save lives of all road users than just focusing on alcohol. Yes, alcohol is bad, but it’s still the car that’s dangerous, but these systems would only target a subset of drivers, and wouldn’t do anything to improve overall safety of cars.