Michelle Cottle notes some statistics on gun deaths that I am genuinely surprised by. This probably isn't what the Supreme Court had in mind when it struck down DC's handgun ban:
Suicides accounted for 55 percent of the nation's nearly 31,000 firearm deaths in 2005, the most recent year for which statistics are available from the Centers for Disease Control and Prevention.
There was nothing unique about that year — gun-related suicides have outnumbered firearm homicides and accidents for 20 of the last 25 years. In 2005, homicides accounted for 40 percent of gun deaths. Accidents accounted for 3 percent. The remaining 2 percent included legal killings, such as when police do the shooting, and cases that involve undetermined intent.
Public-health researchers have concluded that in homes where guns are present, the likelihood that someone in the home will die from suicide or homicide is much greater.
Update: Some further thinking and research on this. Scalia argued in the ruling overturning the DC handgun ban that individuals essentially have a right to keep a gun by their beds, which they can use to scare away assailants in the middle of the night. As Arthur Kellermann wrote in the Post over the weekend, "Statistically speaking, these rare success stories are dwarfed by tragedies." Kellermann pointed to a study that found guns in the home were 12 times as likely to be involved in the death or injury of a member of the household than in the fending off of a masked intruder.
And one need only consult the Brady Campaign to find further horrifying statistics. The risk of homicide in the home is three times greater in households with guns. Due to firearm suicides, there are more than twice as many suicide victims in states with high household firearm ownership. See more here.