MNI US OPEN - By-Election Defeat Increases Pressure on UK PM

EXECUTIVE SUMMARY * NEW IRAN TALKS SET FOR NEXT WEEK AS US BUILDS UP FORCES: #e4dca391-50ef-4cd2-93d4-4d88008d059d * SCALE OF DEFEAT FOR LABOUR IN UK BY-ELECTION COULD INCREASE PRESSURE ON PM: #011e53f7-e90d-409a-bce9-b9340abf8a1c * PAKISTAN DEC...