On Friday, a gunman "pulled a Smith & Wesson .223-caliber assault rifle from his duffel bag" and opened fire on an airport. Officials have arrested the alleged shooter, 23-year-old Paul Ciancia, who killed a TSA agent and wounded six others at a security checkpoint. The incident is the second airport shooting in six months. The National Rifle Association has not yet said a word on the tragedy (the day before, the NRA tweeted a story about the so-called "exploitation"... (GunPolicy.org)