Defending others against edge weapon attack

Go read Scott W. Wagner's article at the USCCA entitled Defending Others Against Edged-Weapon Attacks. Wagner makes the point that in the hands of someone who has a passing knowledge of the use of a knife, and in close quarters, a knife is as, if not more, deadly than a gun.

Please go read Wagner's article.  It is short.  Of course, a knife is an indispensable tool for daily life.  You never know when something will need to be cut from lengths of string, to boxes, to rescuing someone in a car accident.  But it also doesn't hurt to learn how to effectively use a knife as a weapon as well.