"I think if we had a gun we would have been shot immediately." This is as good a place to start as any, at the logical limits of violent self-defense. The speaker is Andres Gutierrez of Nonviolent Peaceforce, a nonprofit organization that has engaged in peacekeeping work in troubled regions of the world for the last decade.
By the time my second born was 4-years-old he had built an arsenal in the toy room that Rambo would be proud of. Everything, he proved, could be a gun: candy canes, markers, his little sister's diapers, a piece of toast with the bites in all the right places. If he had known about the NRA, he probably would have joined.