“A new study by researchers at Arizona State University finds “significant evidence” that mass killings and school shootings can be contagious,” CBS News reports. The study, modeled on previous research finding some suicides may be contagious, “examined databases on shooting incidents in order to determine whether the events inspired similar events in the near future.” It found that mass killings and school shootings “create a contagion period that lasts about 13 days” and “roughly 20 to 30 percent of these kinds of attacks appear to arise from contagion.” Maybe unrestricted access to guns, as advocated by the NRA and virtually all Republican candidates, isn’t such a hot idea? Click here for story.