MICHAEL BARONE: Concealed-weapons laws have changed America regardless of national debate on gun control.

Back in 1987, some people, myself included, worried that such laws would lead to frequent shootouts on the streets arising from traffic altercations and the like. That has not happened — something we can be sure of since the mainstream media would be delighted to headline such events.

To the contrary, violent crime rates have declined drastically during the last quarter-century. I don’t think you can prove that concealed-weapons laws caused that result, but they have probably contributed to it, because would-be criminals are less likely to assault people they believe might be armed. In any case the argument that concealed-weapons laws would lead to more violent crime has been about as thoroughly refuted as an argument can be.

One lesson, I think, is that responsible citizens tend to behave like responsible citizens, even if — or perhaps especially if — they’re armed. Another lesson is that the national political dialogue can be totally irrelevant to what really happens in American life.

Indeed.