Photo: Amtrak.com Stu Nicholson has been trying for decades without success to get Amtrak—or any other passenger rail service—to come to Columbus, Ohio. As director of All Aboard Ohio, a passenger rail advocacy group, Nicholson helped explore possibilities, like creating a new route from Chicago to Pittsburgh, with Columbus in the middle. But for now, Columbus, a city with 878,000 people, the second-largest city in the Midwest, has no passenger rail service. It doesn’t even have a station. That could soon change. A plan Amtrak is floating would not just restore passenger service to Co...