A BBC photographer was stopped from taking a picture of the sun setting by St Paul's Cathedral in London. A real police officer and a fake "community support officer" stopped the photog and said he couldn't take any pictures because with his professional-style camera, he might be an "al Qaeda operative" on a "scouting mission." Now, St Paul's is one of the most photographed buildings in the world (luckily, there is zero evidence that terrorists need photographs to plan their attacks), and presumably a smart al Qaeda operative with a yen to get some snaps would use a tiny tourist camera — or a hidden camera in his buttonhole.