According to this article, the CDC is saying that the defensive use of firearms is an "Important Crime Deterrent?. How about that?
“Studies that directly assessed the effect of actual defensive uses of guns (i.e., incidents in which a gun was ‘used’ by the crime victim in the sense of attacking or threatening an offender) have found consistently lower injury rates among gun-using crime victims compared with victims who used other self-protective strategies,” the CDC study, entitled “Priorities For Research to Reduce the Threat of Firearm-Related Violence,” states.
It was a $2 million study, which seems to have come to a rational conclusion. I could have told them that for a whole lot less than $2 million.