Airman 1st Class Calob Hayes enjoys the relative warmth inside the cab of a K-loader while Senior Airman Alex Delgado stands in the cold weather during the early morning hours, March 26, 2013, at Dover Air Force Base, Del. Both airmen are from the 436th Aerial Port Squadron and are waiting to move in to position to unload cargo arriving from overseas. Airmen from the 436th APS operate Dover's Aerial Port, the largest and busiest air freight terminal in the Department of Defense. (U.S. Air Force photo/Greg L. Davis)