High-speed rail has come to America. Or has it?

Amtrak’s new “NextGen Acela” trains have been billed as the dawn of high-speed rail in the US. Yet outdated tracks keep speeds limited, and with federal funding pulled from most high-speed projects, the future of US rail looks uncertain.

​ Amtrak’s new “NextGen Acela” trains have been billed as the dawn of high-speed rail in the US. Yet outdated tracks keep speeds limited, and with federal funding pulled from most high-speed projects, the future of US rail looks uncertain. Read More Breaking News, Latest News and Videos | CNN