The Defense Department will soon establish a cadre of officials to explain to Congress, the media, academia and think tanks the rationale behind changes to investment plans and significant policy decisions taken in the upcoming 2005 Quadrennial Defense Review. The group will be put together by March, sources say. "It's a way to effectively inform the public," said Army Lt. Col. Chris Conway, a Pentagon spokesman. The congressionally mandated review of strategy, force structure and modernization is expected to shake...