The Metropolitan Police (London, UK) has launched a new counter terrorism campaign with posters and ads going up to encourage people to report "odd" photographers (as well as people acting suspiciously in their homes and suspicious people using cellphones...hmm):

THOUSANDS OF PEOPLE TAKE PHOTOGRAPHS EVERY DAY. WHAT IF ONE OF THEM SEEMS ODD

Terrorists use surveillance to help plan attacks, taking photos and making notes about security measures like the location of CCTV cameras. If you see someone doing that we need to know. Let experienced Officers decide what action to take.
I think "odd" probably covers about 98% of this list... :-)

more here (if the neo-cons get too wild and off topic, we can move this to the lounge, but this is of importance to anyone working in or travelling to the UK for photography...)

http://photo-muse.blogspot.com/2008/...sons-from.html