In Sunday's New York Times, Elisabeth Rosenthal claimed, as the title of her article put it, "More Guns = More Killing." She based this on evidence that would never be permitted in any other context at the Times: (1) anecdotal observations; and (2) bald assertions of an activist, blandly repeated with absolutely no independent fact-checking by the Times.
There is an academic, peer-reviewed, long-term study of the effect of various public policies on public, multiple shootings in all 50 states over a 20-year period performed by renowned economists at the University of Chicago and Yale, William Landes and John Lott. It concluded that the only policy to reduce the incidence of, and casualties from, mass shootings are concealed-carry laws. The Times will never mention this study.
Instead, Rosenthal's column proclaimed that armed guards do not reduce crime because: "I recently visited some Latin American countries ... where guards with guns grace every office lobby, storefront, ATM, restaurant and gas station. It has not made those countries safer or saner."
"I do not feel obliged to believe that the same God who has endowed us with senses, reason, and intellect has intended us to forgo their use and by some other means to give us knowledge which we can attain by them."- Galileo Galilei