Tourists got to see the usual changing of the guards ceremony outside Buckingham Palace in London, England, but they also saw police Tasering a man with a knife on Sunday 3 February. Talhat Rehman, 54, was shouting outside the palace with a large knife held to his throat when a cop walks by and uses a stun gun on him. Article here. The person with the camera has an annoyingly shaky hand.
Knife wielding maniac at Buckingham Palace