The United States has told Russia it will withhold some data on its nuclear forces in response to Moscow's suspension of participation in the New START nuclear arms treaty. While Russia has not formally withdrawn from the treaty, which limits the two sides' deployed strategic nuclear arsenals, Russia's suspension, announced on February 21, imperils the arms control treaty. A White House spokesperson said that under international law the United States has the right to respond to Russia's breaches of the treaty "by taking proportionate and reversible countermeasures in order to induce Russia to return to compliance with its obligations." To read the original story by Reuters, click here.