Could dogs be used to prevent school shootings

[Catherine]

You are right, the problem is the guns. No dog should ever be put in harms way because people won't give up their guns.
I guess I have assumed they will never give up their guns. There is even talk of arming teachers. Dogs just seemed like a safer alternative.

Canada looked at some of the latest mass shootings in the USA and we have banned certain types of guns in Canada.

I don't know all the details of our gun laws. I know there are strict rules about safe storage and they are licensed. 

Maybe the world should consider banning guns. Too much of the world's resources go into making guns. Instead of guns, they could make something useful.
I have gone my whole life and never needed a gun. Most of us have never needed a gun. Too many children have died while at school because of guns.
School is becoming the most dangerous place for a child in some areas. Leave the dogs alone and get rid of the guns.