China on Thursday urged the U.S. to use caution in its Section 232 investigation into the national security implications of aluminum imports, arguing that the World Trade Organization's “legal framework” does not permit members to impose trade restrictions through an “abusive invocation” of national security. A Chinese official offered the country's take during a June 22 public hearing held by the Commerce Department as part of its Section 232 investigation. The hearing featured representatives from several U.S. agencies who heard...