China is moving toward all-nuclear submarine construction in a major strategic shift, US Navy intel chief says

tk Mark Schiefelbein / POOL / AFP The US Navy's intel chief said China is shifting toward building all nuclear-powered submarines. Supported by its vast shipbuilding capacity, China is also ramping up submarine production. China has historically lagged behind on submarine capabilities. US officials say it's catching up. China's navy is moving toward all-nuclear submarine construction, the US Navy's intelligence lead said, describing a long-term shift in how Beijing builds its undersea force...