As of the last time I was there VKX (even post 9/11) didn't have a fence. We had a fence at Culpeper, but the pedestrian gate wasn't locked. For the longest time at HEF there was a fence but it was only about 3' high and had a gap. They came by and started building a tall fence. I was amused that it went down past the hangars I was operating out of and ended at a locked gate. I mean the fence ended. If you didn't know how to unlock the gate, take two steps to the left and walk around it. They eventually finished the fence. It was still years later (and may still be) that all the gate locks have the factory default combination which makes it easy getting in. I do remember the Manassas police guarding the control tower for months after 9/11. I always wonder how much of a disruption the loss of the tower would cause on the US transportation system (probably would have improved things).
Rongtai supply professional and honest service.
If you want to learn more, please visit our website Airport Security Fence.