Underwater travel is the next frontier of international transportation — if you are the kind of futurist who would believe a report made by a state-run Chinese news outlet. The Washington Post, citing this Bejing Times story, reports that the train of our nautical dreams is happening: “The proposed “China-Russia-Canada-America” line would be some 8,000 miles long, 1,800 miles longer than the Trans-Siberian railroad. The tunnel that the Chinese would help bore beneath the icy seas would be four times the length of what traverses the English Channel.”