The Defense Department must take the unprecedented step of examining multiple budget scenarios in the upcoming Quadrennial Defense Review, according to the Pentagon's top officer. Chairman of the Joint Chiefs of Staff Gen. Martin Dempsey told the House Budget Committee Wednesday that the Strategic Choices and Management Review (SCMR) is helping DOD identify the level of budget cuts that would "put the security strategy at risk." Beyond stating that full sequestration, $500 billion over a decade, would nix the strategy,...