Underwater massive 8000-mile high-speed train line to America

China wants to build a massive 8000-mile high-speed train line connecting China, Russia, Canada, and the United States via a 125-mile underwater tunnel. The route would begin in the country’s northeast and extend through Siberia and across the Bering Straight into Alaska. The entire trip would take two days, with the train traveling at an average of 220 miles per hour