Riding with a highway snow plow

Seatbelt on. Safety first. We rode along with John Marra, a highway maintenance worker who has been with the New York State Department of Transportation for 21 years. His beat is the Long Island Expressway between exits 48 and 52; Round Swamp Road and Commack Road. With a storm like the one that hit Wednesday, he can drive anywhere from 300 to 400 miles a day.