On Dec. 14, 2012, a gunman entered a public school in Newtown, Conn., opened fire, and killed six adults and 20 little children. In the interest of the children’s “safety,” the school was a well-known gun-free zone. None of the adults, survivors or slain, were armed with the ability to shoot back to defend themselves, their colleagues or those innocent children. As such, all were proverbial lambs to slaughter.Makes my blood boil.Coincidentally, it was exactly six years to the day — Dec. 14, 2006 — that the Las Vegas Review-Journal published the following in a story: “Students do not go …