With all the trouble between photographers and police in the UK at the moment here's a little cut-out-and-keep information piece, on this generally rather interesting website;
was having a read on this on London fixed fear single speed there are some good articals on there and some of the things the government have been trying to push through is a bit scary very 1984!!
This very nearly got through, which while not affecting you directly when taking photos, would've done afterwards. http://www.stop43.org.uk/ If you use the BBC as your main source of news you may wonder why the only aspects of the Digital Economy Bill they ever mention is the file sharing parts; that'd be because they actively wanted clause 43 and would quite like to have had free access to every image on the internet forever.
I had no idea. As far as I know, this has not hit the U.S. news. I feel so fortunate that, for now, I have the freedom to capture photographs in public.
Oh it is coming to this side of the pond... personally I have not trouble paying of content... and I cannot understand how in one case (movies and music) they are locking down control to ensure everyone pays per use and with other things... photos, ideas, et al they are freeing up ownership... oh wait... money... never mind... if any geeks out there want a scary read... read your manual for your camera if it encodes video... did you know you have no rights to sell any video you take with most modern cameras... right there in B&W, ok so it might not be so straight forward... but we should at least know what we can and cannot do, here is a start, not the answer but something to think about:
http://www.osnews.com/story/23236/Why_Our_Civilization_s_Video_Art_and_Culture_is_Threatened_by_the_MPEG-LA