President Obama is poised to sign off on a new internal review of U.S. nuclear weapons strategy that would reduce the arsenal by one-third, resulting in billions in savings to the Pentagon and Energy Department. The recommended reductions were included in a draft version of a classified decision directive compiled by top defense and national security officials inside the White House, according to a report by the Center for Public Integrity issued Friday. While the president has yet to officially approve the directive, including the recommended one-third cut to the nuclear arsenal, sources tell CPI Obama has voiced no objection...