The law like in Japan posted above might work in a country as small as Japan but to do it here in a country as large as America and where guns are so abundant we would have to turn a couple of states into prisons before it would become effective. We have enough trouble with prison overcrowding without adding something like this to it. I do think the second part of it will work quite nicely though. If someone uses a gun in a crime, any crime, they are put to death and it should be immediate with limited appeals. If violent criminals are put to death the overcrowding of prisons would decrease dramatically.

I do agree with everyone carrying guns as a deterent to crime. If criminals know without a doubt that their prey is carrying a gun he will be less likely to go through with the crime. Criminals have a high degree of self preservation and they are not likely to commit a crime where there is a chance they will die or be injured.