U.K. Photographers Protest Police Harassment

U.K. Photographers Protest Police Harassment, article (with links).
The act of photographing is by itself an extremely poor indicator of possible malign intent. There are plenty of ways for actual terrorists to get photographs of potential targets, either by accessing available existing images or by photographing surreptitiously. The act of photographing openly with plainly visible equipment most probably means a person is less likely than the average citizen to be a terrorist, not more.

I have actually speculated for a while that we needed something like this, and I'd have loved to have been there, but I only learned about it yesterday, so that didn't happen.