Members of North Dakota Senator Heidi Heitkamp's staff stand with a RQ-4 Global Hawk during a visit to Grand Forks Air Force Base, N.D., Nov. 16, 2013. The congressional staff visited the base to learn about its mission and conduct a training session. (U.S. Air Force photo/Staff Sgt. David Dobrydney)
Col. Paul Bauman, 319th Air Base Wing commander, discusses operations on Grand Forks Air Force Base, N.D., with members of North Dakota Senator Heidi Heitkamp's staff, Nov. 16, 2013. The congressional staff members visited the base to learn about its mission and conduct a training session. (U.S. Air Force photo/Staff Sgt. David Dobrydney)
Senior Airman Lauren Hornbaker, 319th Operations Support Squadron air traffic control journeyman, briefs members of North Dakota Senator Heidi Heitkamp's staff during their visit to Grand Forks Air Force Base, N.D., Nov. 16, 2013. The congressional staff members visited the base to learn about its mission and conduct a training session. (U.S. Air Force photo/Staff Sgt. David Dobrydney)