New screening measures at U.S. airports are being called overly intrusive by some passengers and civil rights groups. National security experts advise using a system that relies more on intelligence,…

President Bush’s review of U.S. Iraq policy may involve adjustments to broader U.S. strategy in the Mideast. Bush is hearing proposals ranging from a boost in combat forces to engaging Iran and Syria…

Gen. David Petraeus’ assertions about falling casualties in Iraq are supported by a range of objective sources. But his testimony to Congress does not establish whether the decline is attributable to…

The United States has pursued missile defense technologies for six decades, with mixed results. Changes under the Obama administration, including adjustments to planned defenses in Europe, could port…