It’s the first time I come across this, although I see by comments that it’s been done before, although it’s rare. I had never thought it would occur to someone to publish such a map. It was a surprise to me. And I can understand the rage of the gun owners to see that they could be pinpointed on the map. On the other hand, if the information is public, isn’t it also good to know who in your neighborhood owns a gun? At the same time that gun owners are right to be upset that they could be made targets of burglaries, to have their arms stolen, they are, in effect, in possession of arms to kill others. I would feel more scared living in a society where people didn’t have to register for a gun or that this information would be kept secret.