Col. Paul Bauman (center), 319th Air Base Wing commander, greets a school bus entering Grand Forks Air Force Base, N.D., March 28, 2014. Bauman and 319th ABW Command Chief Master Sgt. David Duncan spent the morning at the main gate checking ID cards and greeting drivers and pedestrians. (U.S. Air Force photo/Staff Sgt. David Dobrydney)