People say that since there are so many guns out there, we need more guns to protect us from the people with guns. It's such bullshit. The person this Nancy Lanza needed protection from was in her home, and he used her own guns. This is a perfect example of the error of this way of thinking. We keep thinking it's the "bad people out there" we need protection from (looters, poor people, terrorists, whoever). When instead - it's us. We are the ones doing the killing. In literary studies we would call this situation "tragic irony."