Could taking an picture like this be considered "suspicious activity"?
[Thanks to Maria for the tip]
If you pull out a camera on a New Jersey train, you will have company - law enforcement company. If you size up a shot on the New York subway, you'll probably be questioned by security and told to keep the lens cap tightly on. Even if you plan to snap some innocuous bank building from a public sidewalk, you might find guards telling you it's not allowed.
Ms. Calzada offers the example of a small-town photojournalist in Victoria, Texas, who was taking shots of potholes for a newspaper story last year when a police officer drove by several times. Finally, the officer stopped and questioned him and, even after running an ID check, bluntly declared the photographer's actions suspicious and intimated he'd be keeping an eye on him, the photographer recalls.
The USA Patriot Act, with its broad definition of "suspicious activity," has cracked the door wider to individual interpretation.