Watch where you point that camera | csmonitor.com:
"In general, photojournalists have no more rights than ordinary citizens to take pictures.
If you're standing on public property, you can shoot anything the naked eye can see, explains Ken Kobre, professor of photojournalism at San Francisco State University and author of one of the seminal textbooks on the subject.
What you can't do, he says, is use a telephoto lens and take shots through office windows or into private residences, where people would have a 'reasonable expectation of privacy.' That would be like eavesdropping or surreptitiously taping someone, he says.
But if a story is newsworthy and in the public interest, then taking photos even on private property is usually permissible, he adds.
Photographing the outside of buildings - schools, hospitals, and even government buildings - is also legal. It's when you go inside that you need permission."