LANGLEY AIR FORCE BASE, Va. - Tech. Sgt. Daniel Summerell, 1st Security Forces Squadron, shows Simon and Suzanne Parnell how to use a megaphone during the AirPower over Hampton Roads April 25. Langley's open house helps educate the public on Air Force capabilities and show appreciation to the local community. (U.S. Air Force photo/Airman 1st Class Gul Crockett)