I was down on 2nd Street photographing dilapidated, largely unused industrial buidlings when, taking pictures of an old RR property, the security guard came out and told us we could not take pictures. When my partner inquired as to who said so, he was told the "owners" and the "police." Well, the police get to enforce but not make the laws, and the law is that you can pretty much take any picture you want from a public place. (We were on the public sidewalk) The owner can prevent you from photographing when you are ON their property, but not from outside their property, no matter how damned much they may not like it. The Homeland is not threatened because of the overactive imaginations of paranoids, nor are your rights to photograph limited by people who want to hide behind public security to -- keep the sight of their building secret, I guess, though it's there, falling apart, plain as day on its multi-acre lot for anyone, including Google maps, to ride by and take a picture of without stopping. Some documents you might want to have handy when someone tells you, 'You can't..." Know Your Rights: Photographers | American Civil Liberties Union http://www.krages.com/ThePhotographersRight.pdf And until I can process the raw files, here's a quick peek from a tweaked jpeg of my subversive activities: Obviously the work of a foreign agent.