Safety board highlights need for transportation improvements

Federal safety officials say they want a crackdown on impaired and distracted drivers, wider use of collision-avoidance technology in cars, and tougher regulations for operators of air tours and medical flights.
The National Transportation Safety Board laid out a wish list Monday to improve safety on roads, trains and in the sky.
The board, which investigates accidents, has 1,200 pending recommendations that have not been acted on by agencies including the National Highway Traffic Safety Adminis