There's one study that showed that carrying made things worse for yourself:
> Results. After adjustment, individuals in possession of a gun were 4.46 (P < .05) times more likely to be shot in an assault than those not in possession. Among gun assaults where the victim had at least some chance to resist, this adjusted odds ratio increased to 5.45 (P < .05).
Getting a CCW is something you as a citizen can do now. Personally, I'm in favor of having an option other than being a victim.