It really boils down to this: Many people who already believe in the benefits of concealed carry will find the evidence they need to vindicate their position in this Kroger example.
Likewise, those who do not believe in the benefits of concealed carry will find the evidence they need to vindicate their position in these examples:
http://www.commondreams.org/newswire/2011/07/05-1
In short, I doubt anyone's mind will be changed from their current position, no matter which position they've taken, because their are cases to be made on both sides.