In the near future the no gun signs will be coming down. Nebraska Furniture Mart will be giving additional training to their in store security personnel. Apparently they get it. They get the fact that the no gun signs just make it easier for a violent person to create a hostile act since they would not be opposed. Congratulations to them for their intelligent, logical decision.
In that second link read about a situation a few years ago in a furniture store in a mall where 8 people were killed and nobody was there to protect them.
Also read about how a licensed CCW holder stopped a bad situation from escalating in Clackamas, Oregon http://www.kgw.com/news/Clackamas-man-armed-confronts-mall-shooter-183593571.html The anti-gunners don’t even want to talk about this.