Devils Lake students visit Grand Forks AFB firehouse during base tour
Students from St. Joseph’s Catholic School in Devils Lake, N.D., try to leave heat impressions on the cool sliding metal door of a fire truck, while Air Force civilian fireman, Justin Haskamp, checks out the results on a thermal imaging device during an April 26, 2013, tour of Grand Forks Air Force Base, N.D. Grand Forks AFB offers base tours each Friday from March through October. (U.S. Air Force photo/Staff Sgt. Luis Loza Gutierrez)