Key Issues Optical clocks Prototype funding SPAFORGEN
On July 19, 2012, the Senate Armed Services Committee held a hearing to consider the nominations of Air Force Gen. Mark Welsh to become the service's chief of staff; Marine Corps Lt. Gen. John Kelly to become the head of U.S. Southern Command; and Army National Guard Lt. Gen. Frank Grass to become the chief of the National Guard Bureau. Includes advance policy questions answered by the nominees.