John McCain: “Now, what's going to be the cost of the John F. Kennedy?”

The National Defense Strategy offers a new framework for thinking about the global challenges we face and that places China squarely at the top of our priority list.

The Department of Energy's defense atomic energy programs are critically important to our national security.

Air Force leadership has talked about the importance of networks to their visions of the future of the Air Force.

I'm the luckiest guy on earth. I have served America's cause, the cause of our security and the security of our friends, the cause of freedom and equal justice all my adult life.