I have learned the below from a good source who learned it while having coffee with several Indiana law enforcement officers:
As part of their emergency planning, in case of a shooting incident or other such emergency, the local schools invited local law enforcement for a tour so they can become familiar with the buildings in case of emergency.
They were given floor plans of the building for the tour.
At the end of the tour they had to return the floor plans of the buildings for "security purposes". The law enforcement officials present asked what if there were an emergency and they needed the floor plans? The assistant superintendent replied that she, or another administrator, would go with them in the buildings in the event of an emergency.
Heaven forbid the administrators being shot! Then law enforcement will not be able to enter the buildings! And of course, these good school administrators must be careful for these local law enforcement officials might be terrorists, so they can't let them have a copy of the maps.
What a sad shape we are in here in the good old USA. The socialists have won.