KIRBY BRIEFING Pentagon Press Secretary Rear Adm. John Kirby briefs reporters at the Pentagon, Feb. 5, 2014, on personnel matters in the Defense Department's nuclear force. Kirby said Defense Secretary Chuck Hagel was concerned that systemic issues may be threatening the health of the force following allegations of cheating on proficiency tests among Air Force and Navy personnel. SHARE: Download: Full Size (0.04 MB) Credit: VIRIN: 701981-A-BGV40-477.jpg Photo Gallery