http://news.bbc.co.uk/2/hi/uk_news/england/2666693.stm Apparently, during a terror raid, one man (of three present) attacked the officers executing the raid with "a large knife" (from another report, the Associated Press' version). He killed one officer and wounded four others, including one who was wounded seriously and three with "minor injuries, including stab wounds and a broken ankle" (again from the AP version). I don't know if the police had been given firearms for this raid or if they only had their usual billy sticks. I do know that a knife is a very dangerous weapon, and that if you're facing an opponent with a knife it's a very serious situation. One man killed one police officer, seriously wounded another, and injured three others. I don't know what the scenario was but it's a sure reminder how deadly a knife can be.