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The fastest train in the United States has never had the country’s fastest Wi-Fi or anything close to it, but the free 5G-based connectivity onboard Amtrak’s NextGen Acela trains now traveling the Northeast Corridor still represents a substantial advance over Amtrak’s previous efforts, much less what the passenger railroad debuted in 2010.
On a ride from Washington to New York on NextGen Acela’s second day of revenue service in late August, the remarkable thing about the…
