Master Sgt Joseph Mumper and Airman1st Class Lara Cook toss a cargo net over a pallet at the 167th Airlift Wing, Shepherd Field, Martinsburg WV, on March 23 2012. Airmen assigned to the 2T2X1, air transportation career field, are responsible for passenger and cargo movement functions on a variety of aircraft types. They must also know weight and balance factors, airlift transportation directives and documentation, cargo securing techniques, border clearance requirements, operation of materials handling and other types of loading equipment or devices and fleet service functions. (U.S. Air Force photo by Master Sgt Emily Beightol-Deyerle)