Defense Secretary Robert Gates today signed the terms of reference for the Quadrennial Defense Review, laying out his guidance for a major assessment of defense priorities that is expected to shape the Obama administration's fiscal year 2011 defense budget request, InsideDefense.com has learned. Yesterday, a senior defense official told reporters the QDR guidance would address "the threats and challenges that we're facing, how we see the environment, what are the specific focus areas; you know, the governance for the process,...