"And if you’re one of those law-abiding, responsible gun owners, all I ask of you is this: Imagine it’s your gun that is stolen from your house by someone who is neither responsible nor law-abiding. Imagine it’s your gun that, through no fault of your own, gets re-sold to someone who couldn’t pass a background check. Imagine it’s your gun that winds up in the hands of someone who intends to use it to harm himself or others.