LaPierre said "the next Adam Lanza," the man responsible for last week's mayhem, is planning an attack on another school, says an AP report.

"How many more copycats are waiting in the wings for their moment of fame from a national media machine that rewards them with wall-to-wall attention and a sense of identity that they crave, while provoking others to try to make their mark," LaPierre said. "A dozen more killers, a hundred more? How can we possibly even guess how many, given our nation's refusal to create an active national database of the mentally ill?"

He blamed video games, movies and music videos for exposing children to a violent culture day in and day out. "In a race to the bottom, many conglomerates compete with one another to shock, violate, and offend every standard of civilized society, by bringing an even more toxic mix of reckless behavior and criminal cruelty right into our homes," LaPierre said in the report.

He refused to take any questions after speaking. Though security was tight, two protesters were able to interrupt LaPierre's speech, holding up signs that blamed the NRA for killing children. Both were escorted out, shouting that guns in schools are not the answer.

LaPierre announced that former Rep. Asa Hutchison, R-Ark., will lead an NRA program that will develop a model security plan for schools that relies on armed volunteers, the report says.