WASHINGTON/HONG KONG -- The Trump administration has opened a new front in the trade war by threatening to withdraw from a global postal agreement, prompting China to blast what it sees as a pattern of American rejection of international cooperation.
International rules for cross-border shipping are based on a 144-year-old postal treaty under the Universal Postal Union, a 192-member United Nations agency. The system makes shipping cheaper for postal services in emerging nations -- something the U.S. says unfairly benefits China, now that it is the world's No. 2 economy.
