The police were slow to enter the school and were heavily criticized for not intervening during the shooting. The incident resulted in the introduction of the Immediate Action Rapid Deployment tactic, which is used in active shooter situations. Columbine also resulted in an increased emphasis on school security with zero tolerance policies. Debates and moral panic were sparked over guns and gun control laws, high school cliques, subcultures (e. g. goths), outcasts, and bullying, as well as teenage use of pharmaceutical antidepressants, the Internet and violence in video games and movies.