Photographers fight back
I've written before about how it is becoming too common in some countries for authorities to think that it is a crime for someone to simply take photographs. In the UK, for example, there is a suspicion that if one is taking photographs of a public facility, you might be a terrorist. There have been examples where people have been told it is illegal for them to take certain photographs, when that is not the case. The photographer usually just complies to avoid the hastle, and avoid being arrested. Take a look however at this post on the Photography is not a crime blog where some LA photographers recorded their discussion with security guards trying to stop them, and these posts on the Photo Attorney blog referring to the National Photograper's rights association , and the National Press Photographers Association letter to Amtrak advising that Amtrak was trying to stop people taking pictures without any grounds to do so.