What should a modern martial artist know about knife fighting? With modern day violence and crimes, there may be possibilities of knife threats. I wonder what is the percentage of people getting hurt or killed by a knife from all the hand to hand combats that has occurred all over the world?
Institute of Combative Arts™ 
fwiw the fbi says about 19% of aggravated assaults involve knives. see http://www2.fbi.gov/ucr/cius2009/offenses/expanded_information/data/agassaulttable.html
I think this chart gives some good information. Anyone serious about self-defense should consider this equation.
What’s up everyone, it’s my first pay a quick visit
at this web page, and paragraph is truly fruitful in support of me, keep up posting
these types of posts.