“If you happen by 3701 N. Fairfax Drive in Arlington and decide you have a sudden craving for a photograph of a generic suburban office building, and you point your camera at said structure, you will rather quickly be greeted by uniformed security folks who will demand that you delete the image and require that you give up various personal information. When Keith McCammon unwittingly took a picture of that building, he was launched on an odyssey that has so far involved an Arlington police officer, the chief of police and the defense of the United States of America.” - story