Defense Secretary Chuck Hagel is concerned that systemic issues involving ethical lapses may be threatening the health of the force and they have his full attention, Pentagon Press Secretary Navy Rear Adm. John Kirby said during a briefing at the Pentagon, Feb. 5, 2014. Kirby said senior leaders are working to fix any systemic issues amid alleged cheating on proficiency tests at an Air Force missile base and at the Navy’s nuclear propulsion school. (DOD photo by Erin A. Kirk-Cuomo)