May 7 (UPI) -- As Washington and Hanoi enter a dense stretch of trade diplomacy, the coming weeks will test whether one of the Indo-Pacific's most pragmatic economic partnerships can sustain its momentum or become entangled in the very frictions it has worked to avoid. A series of meetings -- including Section 301 hearings on industrial capacity from Tuesday to Friday this week, forced labor discussions April 28 to May 1 and bilateral consultations next Monday and Tuesday, arrives at a pivotal