[STARWISE]

Well, tourist picture taking typically would include the tourists IN the picture ... not the roads, bridges, structures, guards, etc. Has this happened more than once .. has it been the same people? How close to them are you? How close could you innocently and nonchalantly get? Is this a big tourist area? .. crowds of people regularly?

I'm not sure if you said, but where are you? I guess you have to start thinking like a terrorist and divining what could be so special about this spot to them. Also, surrepticiously taking down license plate #'s .. and maybe secretly taking your own pictures of them, keeping track of any patterns, etc.

[ZOTnot]

No, insofar as I can ascertain, it is not the SAME people, but by the same token, I cannot say unequivocably that there is not a pattern. I have even seen people set up a tripod for photographs who are not questioned or approached at all; And who appear to be without press credentials, or news credentials. I have even become part of the photos insofar as I know, as if I am someone who must be 'accounted for.' ( I am a smoker, and therefore must exit the building to have a cigarette whereupon I see this activity occurring).

[MamaDearest]

and maybe secretly taking your own pictures of them, keeping track of any patterns, etc.

I strongly recommend keeping at minimum one of those disposable cameras in your car. You may never use it, or you may have an auto wreck, in which case it can document what happened, OR you might see something suspicious and it would be close at hand and you can document that!