As the Acela Express zooms along the New England coastline at up to 150 m.p.h., bare trees and backyards flying by, it's hard to believe that the nation's first high-speed train is really the work of Amtrak. Where is the sluggish, lurching ride we've come to count on--and curse--from the nation's famously floundering passenger-rail operator?
It's still there, in most of the U.S. But a trip from New York City to Boston that can take close to five hours is now over in about three and a quarter, thanks to a new "tilting" technology that helps the Acela negotiate curves....
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