TRUMP DOES NOT RULE OUT MEETING IRAN'S PEZESHKIAN AT UN GENERAL ASSEMBLY, SAYS IN 'DECIDING MODE' ON NEXT STEPS:WSJ *QATAR PLANS TO USE UNGA TO DISCUSS RESUMING US-IRAN TALKS: DIPLOMATS:WSJ *UN CHIEF GUTERRES, ANALYSTS DOWNPLAY PROSPECTS FOR US-IRAN BREAKTHROUGH AT UNGA:WSJ *IRAN PRESIDENT PEZESHKIAN TO ADDRESS UN GENERAL ASSEMBLY WEDNESDAY TO ARGUE SELF-DEFENSE:WSJ