I must politely disagree. There are many cases in the US where a firearm is used for self defense. There are even some cases where a firearm is used for defense and the weapon is never fired (the threat of potential use of the weapon was sufficient to stop the crime). In the city of Pittsburgh Pennsylvania, just last evening, three armed robbers forced their way into a private home. The home owner responded correctly by killing one of the three attackers. Sadly, the would be thieves are the ones who created this situation. The other two remain at large.