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."
The National Rifle Association broke its silence Friday on last week's shooting rampage at a Connecticut elementary school that left 20 children and six school staff members dead.
The group's executive vice president, Wayne LaPierre, said at a Washington news conference that "The only thing that stops a bad guy with a gun is a good guy with a gun."
- Watch the news conference:
The NRA largely disappeared from public comment in the week following the Newtown school shootings.
Unlike its responses to past mass shootings, the NRA on Tuesday only issued a statement saying it was "shocked, saddened and heartbroken" by the shooting, vowing to make "meaningful contributions" to prevent another mass shooting.
Also Friday morning, President Obama issued a statement online calling for action on ways to reduce gun violence, in response to public petitions posted on the White House website.
The Associated Press contributed reporting to this article.
This segment aired on December 21, 2012.