 U.S. stocks end the day higher with the Dow closing up 162 points. You're listening to NPR News. Good evening. With this Maine Public Radio News, I'm Robbie Feinberg. Maine roads may become crowded on Wednesday as holiday travelers begin heading out for a long Independence Day weekend. And Tom Barron of AAA of Northern New England says gasoline prices should enable more people to take to the roads. Prices on gas right now throughout the country, about