There is no simple master plan for an easy victory. But the cumulative effect of many seemingly small countermeasures, effectively applied on a large scale by individual officers and their agencies, can have a powerful impact.

Here are some of the practicalities that Trainer Dave Grossman suggested we consider in beginning to address the critical problem of terrorists coming for our kids.

First mission.

That's overcoming denial. And where schools and terrorist attacks are concerned, denial abounds.