John McCain: “Do such shortfalls raise concerns that you are not finding all the problems?”

The Air Force has opted to cancel the JSTARS Recapitalization program and pursue an Advanced Battle Management System (ABMS).

As stressed in the newly released National Defense Strategy, Russia and other adversaries have mastered the art of conducting a systematic aggression against the United States.

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

A North Korean missile with a nuclear payload capable of striking the United States Homeland is no longer a distant hypothetical--it is an imminent danger.