Interesting thoughts about surveillance

I realized recently that it is interesting that you have a lot of public places where you are not allowed to take photos. All the places where you have some sort of travelling, military, hospitals schools included photography might be forbidden or very restricted. I found this out while doing a third year product design project about transport. We tried to take pictures of trains and train stations but we got told that we would have needed a permission from London to do so... The reason given to it is that it prevents terrorism and gives some people privacy. I find this it a bit weird since at the same time all the cameras are filming you and that data is very easy to get. I know it is very easy to get since I found a 2 minute youtube video online which tells you how to hack some CCTV's online ( https://www.youtube.com/watch? v=iqHnxiiFmgE ) I couldn't believe that the tutorial wasn't fake and you can actually watch live CCTV while sitting in your bed drinking coffee, it is quiet insane... I am sure some cameras are more secure than the others but none of them should be as easy accessible as this! There is an interesting article about this http://www.wired.com/threatlevel/2012/05/cctv-hack/