If you own a camera, live in America, and take pictures of more than your friends and family smiling in front of tourist spots, you're probably already aware of a lingering environment of hostility towards professional photography gear in public in our post-9-11 society. And, while there have been many useful guides to what your rights still are, none have been from an organization with the history and clout of the ACLU. Until now, anyway. So, stop wasting time here when you could be hitting the link below and reading over their write-up. Print out a copy. Keep it in your camera bag. And take to heart the parts where they remind you to be polite, nothing makes photographer's look worse in the eyes of nervous law enforcement than behaving like entitled, belligerent sacks. Know your rights, stick to them, but do it with manners, composure, and respect. It'll keep you out of a great deal of trouble, usually.