The United States and China reciprocally invoked additional 25 percent tariffs on $34 billion worth of their imports on Friday, stoking fears that a full-fledged trade war will hurt the global economy and undermine the world free trade system.Washington slapped the first round of the new tariffs on bilateral imports worth $50 billion for alleged intellectual property and technology theft, while Beijing quickly struck back on an equal amount of American products."The United States has waged the biggest trade war in economic history against the rules of the World Trade Organization," China's …READ FULL ARTICLE