President Donald Trump struck a conciliatory tone during his trip to China. He returned from his Beijing summit with Xi Jinping yesterday full of praise for the “great leader,” who is, in Trump’s estimations, “an incredible guy.” The summit was “very successful, world-renowned, and unforgettable,” according to the President, who insisted that “a lot of different problems were settled.” But there’s one problem that hasn’t been addressed: the growing number of Chinese operations on US soil. Last week Eileen Wang, the mayor of the southern Californian city of Arcadia agreed to plead guilty to acting as an illegal agent of...