"** FILE ** Wayne LaPierre, executive vice president and CEO of the National Rifle Association, speaks during a news conference in Washington on Friday, Dec. 21, 2012, in response to the Newtown, Conn., school shooting the week before. The NRA, the nation's largest gun-rights lobby, is calling for armed police officers to be posted in every American school to stop the next killer ""waiting in the wings."" (Associated Press)"