Russian President Vladimir Putin’s signing Monday of a decree halting his nation's participation in a bilateral agreement with the United States through which each country would dispose of 34 metric tons of nuclear weapon-usable plutonium may represent the highest-profile casualty of the U.S. domestic battle over a costly facility under construction in South Carolina.The Kremlin cited hostile U.S. actions and failure to uphold its end of the deal in disposing of its own excess plutonium as cause for suspension of the…
