Suffice it to say, if a person enters your home for the purpose of harming you, you cannot reasonably expect the police to arrive in time to stop him. This is not the fault of the police—it is a problem of physics. https://samharris.org/the-riddle-of-the-gun/
Of course though, even better would be someone that is well versed in using a gun properly and has had some experience in the line of fire. Hence why I am also for armed guards in Schools but not for arming teachers.
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