“With just one single exception, the attack on congresswoman Gabrielle Giffords in Tucson in 2011, every public shooting since at least 1950 in the U.S. in which more than three people have been killed has taken place where citizens are not allowed to carry guns.â€ï»¿
John Fund writes on NRO: A few things you won’t hear about from the saturation coverage of the Newtown, Conn., school massacre:Mass shootings are no more common than they have been in past decades, de…