Another Columbine Article

http://www.nytimes.com/1999/04/28/us/terror-littleton-police-response-school-attack-may-bring-changes-police-tactics.html

This New York Times article discusses more in-depth the changes in tactics since the Columbine Massacre. It discusses the noticeable changes in policy, procedure, and tactics of police departments responding to active shooter scenarios. Having trained in these scenarios, it is a drastic departure from the "contain and wait" that has dictated policy since the formation of SWAT teams. Basically, since the formation of SWAT teams 30 years ago, officers have been trained to arrive quickly to an emergency, secure the scene by setting up a perimeter, and containing the situation until SWAT arrives to handle the situation. Now, officers are trained to wait only for more officers to arrive, and then make entry to locate, close with, and engage the suspect/s. This can include the hard truth that in order to protect life, those entry officers may have to ignore any injured people they come across to engage the threat, and bring the incident to a close as quickly as possible. By doing this hard line approach would allow a faster response by medical personnel, and SWAT teams for sweeping the building after-wards, because the threat has been engaged.