Undue burdon?

Apparently plans for updates to Philadelphia's City Hall include a new security system that would photograph and log all visitors to the upper floors of the building. Motivations appear to involve "post-9/11 concerns," but nobody will guarantee that such records will be kept private or how they might be stored or used. Personally, I find the notion of being photographed for attemtping to contact my city employees more than trivially jarring -- are complaintants and filers automatically suspects? Do I want my photograph on file for unknown future use? And, um, isn't jury duty (the only thing that's taken me to upper floors) already bad enough??