I didn't read all the posts so please forgive if this is redundant or trite, but where do the wackos go to shoot innocents in large numbers? They go to places where they know nobody will be armed.
Why are we talking about the possibility of increasing the number of places where nobody will be armed?

__________________
1983 M-B 240D-Gone too.
1976 M-B 300D-Departed.

"Good" is the worst enemy of "Great".