The issue focused on technology — software that monitors cars and sensors that detect cars on the road — as well as software that monitors cars and sensors that detect cars on the road. The software monitors cars for signs of failure and sensors for injuries. The hardware monitors cars for symptoms and sensors for injuries. "You need hardware and software that do this without software," says Russel Johnsen, who leads NHTSA's Mobile Electronics Electronics Electronics Electronics Electronics Electronics Electronics Electronics Electronics Electronics Electronics Electronics Electronics Electronics Electronics Electronics Electronics Electronics Electronics