Matt Light, front, a former offensive tackle for the New England Patriots football team, speaks with U.S. Service members during the 2013 USO Chairman's Holiday Tour at Bagram Airfield, Parwan province, Afghanistan, Dec. 9, 2013. The tour included seven stops in four countries for deployed troop visits and was led by U.S. Army Gen. Martin E. Dempsey, the chairman of the Joint Chiefs of Staff.