Chuck Hagel: “Israel's borders must be secure.”

Planning for climate change is not some frivolous waste of time, a waste of money. It is essential to our troops and to their wellbeing, and the national security of this country.

Well, first recognize that we have a problem and then start addressing the problem, locally, nationally, globally.

Our nuclear deterrent plays a critical role in assuring U.S. national security and it is DOD'S highest priority mission. No other capability we have is more important.

Climate change is a national security threat.