161018-N-IR859-078 HOUSTON (Oct. 18, 2016) Capt. Gavin Duff, executive officer of USS George H.W. Bush (CVN 77), visits with Barbara Bush during a trip to Houston, Texas, for Houston Navy Week. Navy Weeks, coordinated by the Navy Office of Community Outreach (NAVCO), are designed to give Americans the opportunity to learn about the Navy, its people and its importance to national security and prosperity. (U.S. Navy photo by Chief Pety Officer Jen Blake/Released)