Calibre Press has a very interesting video on edged weapons. It even shows what a fork can do to someone. It's pretty amazing. I think they started the whole 21' rule with bladed weapons. They even show some of, at the time, best knife fighters in the world do their thing. A knife doesn't jam, you don't have to reload it, and it's pretty traumatic to get stuck with one. Swords are even worse. I was on a homicide scene where the victim took a single strike from a sword and was very nearly decapitated from just one blow in the hands of a mental without any martial arts background. Plus, he was little guy. It was something else. After seeing that stuff it's hard to take the general population serious with their T.V. induced ideas like shooting to wound, or that we should be better trained in martial arts so that we can close with and disarm subjects armed with swords.....