7 Things to Know about Chris Kyle

38-year-old former Navy SEAL died Saturday

David Brooks: Hagel Should Offer to Withdraw His Nomination

Gitmo Detainees Return to Field of Battle

Former Guantanamo prisoners fighting in Syria with Islamist opposition group

Nelson Discusses Burmese Python Eradication, Chuck Hagel

Axelrod Discusses Gun Control, Deficit Reduction

Inhofe: Too Early to Count Votes on Hagel

Mika is Gun-Curious

Cyber Breach

Energy Department networks hit by sophisticated cyber attack