These people were taking image of Metro Rail facilities, oil refineries and traffic near a court houses.
Again, nuke plants, CIA, Pentagon, court facilities, refineries, dams, bridges, buildings, amusement parks on and on have all been imaged *thousands* of times.
Ya mentioned bridges. In San Francisco people image the Golden Gate among other bridges hundreds of times per day. They come from all over the world and do this daily. Most all strategic bridges are the same. People image them as a matter of routine.
To be honest, since ya got down right rude here, based strictly on your comments, I have forgotten more about security issues/investigations than you ever knew.
But if ya want to call the cops on everyone ya see taking pictures, or using common off the shelf software to image the CIA, Navy ships or whatever, be my guest.
WE should be out taking photos of the officials who will be GIVING THE ORDERS when the SHTF; leaning their locations at home and work, their travel routes, their habits and recreation. Let's see how quickly someone in a LEO uniform shows up to question us.