A newly contentious phase appears to be under way in the South China Sea, where China has made expansive territorial claims, after the head of US naval operations said today in Tokyo that US vessels are free to travel “wherever international law allows." Echoing earlier remarks by US Defense Secretary Ashton Carter, John Richardson, the US chief of naval operations, stated that, "It should not come as a surprise to anybody that we will exercise freedom of navigation wherever international law allows.” He added that "I don't see how this can be interpreted as provocative." A Chinese spokesman responded by...