LIVERMORE, Calif. — The W80-4 warhead’s final design reviews are complete and its first production unit is still on track for fiscal year 2027, a senior official at the Lawrence Livermore National Laboratory official told the Exchange Monitor var AIAD_adc644209ed8d0e4efecb7575c8ec06b_6762e305de194;googletag.cmd.push(function(){var…