For years, U.S. leaders have reassured the public that missile defense systems can keep them safe.
Updated: 5 minutes ago
|Army Chief of Staff General James C. McConville offered condolences Thursday after nine soldiers were killed in a crash of two Black Hawk helicopters.
Updated: 2 hours ago
|New research is shedding light on the long-term effects of traumatic brain injuries and changing how some believe it should be treated.
Updated: 3 hours ago
|Aerials show the scene of a train derailment in Raymond, Minnesota, early Thursday.