Republican lawmakers on Wednesday sharply criticized a new White House plan to further reduce the U.S. nuclear weapons arsenal, with House Armed Services Committee Chairman Howard "Buck" McKeon (R-CA) reiterating allegations that Russia has been violating an existing arms-reduction agreement. While some Republicans rejected President Obama's plan for a one-third cut in nuclear weapons on the grounds that more of them are needed to retain an effective strategic deterrent, McKeon's allegations of Russian fraud -- unexplained publicly thus far --...