“If we’re trying to prevent carnage like that of Orlando, we need to be vigilant not only about infiltration by the Islamic State, and not only about American citizens poisoned into committing acts of terrorism. We also need to be vigilant about National Rifle Association-type extremism that allows guns to be sold without background checks.” – Nicholas Kristof, Some Extremists Fire Guns and Other Extremists Promote Guns [via nytimes.com]