I disagree on the inappropriateness of this subject matter for LCR. It is appropriate for LCR because it goes directly to the reason for the amendment in the first place. It is specifically related to the need for the civil right to self-defense and defense of community with sufficient firepower.
As often as the rhetorical question is ask, 'why would anyone need an assault rifle' or a 'thirty round clip', well, here is an example that points to the impossibility of LE protecting the citizenry when the need is the greatest. Again, that is NO reflection whatsoever on the brave souls in LE.