US Department of Justice files show that in every city/state that has allowed the private citizen the right to carry a firearm in public (Arizona, New Mexico, Florida, to name a few) has seen a large decrease (sometimes more than a 50% drop) in all violent crimes.

IF the bad guys know that the good guys are armed, they think twice.
An armed society is a polite society.
_________________________
I'd rather be ignorant than stupid. Ignorance implies a lack of knowledge which is easily correctable through education. Stupidity implies an inability to learn. Therefore; ignorance is temporary, stupidity is forever!