Big tech and geopolitics are reshaping the internet’s plumbing

WHEN THE navies of Britain, Estonia and Finland held a joint exercise in the Baltic Sea earlier this month, their goal was not to hone warfighting skills. Instead, the forces were training to protect undersea gas and data pipelines from sabotage. The drills followed events in October when submarine cables in the region were damaged. Sauli Niinisto, the Finnish president, wondered whether the Chinese ship blamed for the mischief dragged its anchor on the ocean bed “intentionally or as a result of extremely poor seamanship”.