I do think way too many security guards and cops overreact when it comes to people taking photographs. I'm pretty laid back about it personally .. the only time I'd stop them is if they were trespassing, taking photos of restricted property or interfering with my job.
I had a couple once ask if they could take pictures of me and my cruiser.. I just shrugged and said sure. It doesn't bother me.
Some cops freak out about it though. Maybe they're just camera shy. lol
I had a female cop in Portland get all bent out of shape because I took a photo of her texting on her cell phone while she was uniform. I don't know if there's some rule against that, but her reaction suggested there might be.
I told her not to worry, that I wouldn't show it to anyone, since I felt the pink iPhone cover clashed harshly with the deep blue color of her uniform.
She then let up, smiled, and told me and my buddy to have a nice evening...
Lol.. nice. That's a good stance to take though.
People need to understand that a cop has a tense job and dealing with people can be dangerous for them. Being respectful and lightening the tension can go a long way.
When I deal with people, their reaction to me tells me something. If they're confrontational or nervous, what effect is that going to have on me? If they're friendly and easy going .. odds are I will be too.
Something for people to keep in mind when dealing with law enforcement. The officer doesn't know you.. it's the nature of their job to regard you as potentially dangerous.
Don't encourage that by being a confrontational douche.