In Canada, guns are strictly controlled, but not illegal. However, it is easy enough for criminals to buy them, of course, because they can easily be smuggled in from the United States. In other words, the illegal (by Canada's laws) sale of guns in the US is directly hurting Canada.
Did you know that the US is one of the top violators of Canadian weapon laws?
So I think that the US should start following Canada's laws.
(Then we'll start following your copyright laws)
(For any humour impaired, I'm joking)
Statistics show that people with concealed carry permits are far less likely to be involved in a violent crime than a person without.citation needed