GUN CONTROL BY DUMMIES: NRO schools David Frum about guns. I had intended to school him myself, but VerBruggen does a better job.

I would only add one thing with respect to the 'bullet in the chamber' comment. Every gun owner I know or have talked to is aware of Rule 1: a weapon is presumed to be loaded until you, personally, have verified by inspection that it is not. That said, both my handguns have chamber indicators on them; I pay them no attention until I have personally verified the chamber is clear.