Senator Charles Schumer is lobbying a bill that could make anti-drunk driving systems as common as seat belts in cars.

Schumer says he wants the U.S. Department of Transportation to do more research on high-tech sensors that can detect whether a driver is intoxicated, and prevent a car from starting.

The Roads Safe Act would allocate about $50 million to improving the technology, and making it cheaper.

"For a hundred or two hundred dollars, particularly those with kids who drive their cars, would put it in.  But there's no question it would be mandatory for anyone who had any DUI, DWI conviction," he said.

Schumer says the technology is discrete, and can detect a driver's blood-alcohol-level by sampling the air inside a car, or by touch alone.