Title? You can't handle a title!
"Have you seen the number of CCTV cameras lately?"
Most CCTV cameras are legally blind. Seriously, if classified according to human sight rules then most CCTV cameras would be collecting their disability payments, so to speak. Your 12MP Canon DSLR with a £2,000 lense however, is not.
"Anti-war protests aren't illegal (not in the UK anyway)"
Not yet, except for the middle of London unless you get some very deniable permission, and you only have to look at docu-films like "Taking Liberties" (play.com for a fiver last I looked) to see how sometimes even the police don't know the rules.
"Agree about ignorance, there are some right muppets out there. Hence my comment about making it very visible, understandable, and accessible."
Unless you don't fancy being tagged all over Facebook. In which case, you're kind of stuffed. Only option left if you can't go under the radar, is to make sure you utterly obliterate the radar with chaff. Hence my earlier suggestion of poisoning things. And why shouldn't we? It'll be fun!
"Wish I'd thought of "doo dee doo dee"."
I prefer "Dun dun DUNNNNNN" myself.