 You know, I am skeptical of the whole category of public health, but if the term has any meaning, then it has to apply to medical problems, diseases, right? A gun is not a disease. Yes, a gun can cause injury, but there are thousands of physical objects in existence that can and do cause injury. Are they all public health issues? Well, the public health establishment would certainly say yes. You know, that's the point. Also, and this is important, not all gun violence is bad.