Italians - mafia?

If an Italian travels abroad and says where s/he comes from, one of the first associations which s/he will be attributed, is 'mafia'. For foreigners Italy is first of all mafia.
Now, you will be surprised to hear that murders in USA are around 3 times more than in Italy.
Yesterday a new massacre in a USA university; unfortunately it often happens in USA: 32 dead.
There are 275 million inhabitants in USA. There are 57 million inhabitants in Italy. An average of 12000 people are murdered each year in USA. An average of 700 people are murdered in Italy each year. In Germany they are around 300 out of a population of 80 million inhabitants.
So in Italy murders are much more than in Germany, and also than in France and UK, but in USA murders are around three times more than in Italy.
Mafia? If I still hear someone associate the word mafia with me when I move abroad, I will now oblige him/her to listen to these numbers.
There is a difference, though: in Italy crimes are above all criminality or mafia. In USA there is not much criminality: ordinary people, good neighbours, good students going to church on Sunday ... these seem to be the responsible of the massacres. Ordinary people who, all of a sudden, bent by a big problem, begin to shoot here and there. Also in Italy common people get suddenly crazy for jelousy, or sudden unemployment, or hate for the neighbours , but - and this is an important point - they do not own a gun, a war pistol, a domestic kalashnikov. In Italy it is difficult to be allowed to buy a weapon. If one wants to kill, he can use a kitchen knife. But in USA it is terribly much easier. And so by chance there are thousands of murders evey year.
So now, which country is safer, USA or Italy?