autoNotion – For as long as anyone has war-gamed a fight with China, the Pacific Ocean has been America’s best defense. It is more than 5,000 nautical miles of open water, and the working assumption has always been that Chinese warships and submarines simply could not cross it in any numbers, which kept the West Coast a long way from any shooting. China is now building underwater drones the size of submarines, and crossing that ocean is more or less the entire point of them.

(Thanks to Alain)