SNAPPY ANSWERS TO SILLY QUESTIONS ABOUT GUNS: (1) We don’t allow felons or the mentally ill to carry guns. Iran seems to fit in to this category . . .
(2) Suits against gun manufacturers are an attempt by government officials to circumvent the political process, using tort law to do what they can’t do via legislation because the voters oppose it. I don’t think that applies to my example at all.
I’ll add that I’m pretty sure that nobody in the Omaha mall was thinking, “Good thing the crazy guy is the only one here with a gun.”