Christ on a a crutch. How could anyone be so deliberately obtuse?

Presumably you've heard the videos. The distinction between an automatic weapon and a semi-automatic weapon that has been outfitted to act just like an automatic weapon is moot.  The goal of any legislation intended to rein in semi-automatics would be to prevent tragedies like this from happening.

I say this as a liberal who has long supported gun rights. I am starting to wonder about that position now.