It is legal, but it is not wise If you post such signs, and a crime is committed that the cameras should have detected, you can be held liable, in that the victim had valid reason to believe cameras were in existence Also, I would add that, if you posted the signs, it shows that YOU believe that the area in question is dangerous enough to require camera surveilance. Not having cameras where you know they're required can be construed as negligence.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.